diff --git a/002_source/cms/src/app/dashboard/teachers/edit/[customerId]/_PROMPT.md b/002_source/cms/src/app/dashboard/teachers/edit/[customerId]/_PROMPT.md
deleted file mode 100644
index abf4465..0000000
--- a/002_source/cms/src/app/dashboard/teachers/edit/[customerId]/_PROMPT.md
+++ /dev/null
@@ -1,11 +0,0 @@
-# task
-
-## instruction
-
-with reference to `/home/logic/_wsl_workspace/001_github_ws/lettersoup-online-ws/lettersoup-online/project/002_source/cms/src/app/_helloworld/page.tsx`
-
-with reference to `/home/logic/_wsl_workspace/001_github_ws/lettersoup-online-ws/lettersoup-online/project/002_source/cms/src/app/dashboard/lesson_types/edit/[typeId]/page.tsx`
-
-please modify `/home/logic/_wsl_workspace/001_github_ws/lettersoup-online-ws/lettersoup-online/project/002_source/cms/src/app/dashboard/lesson_categories/edit/page.tsx`
-
-please draft a tsx for showing error to user thanks,
diff --git a/002_source/cms/src/app/dashboard/teachers/edit/[customerId]/page.tsx b/002_source/cms/src/app/dashboard/teachers/edit/[id]/page.tsx
similarity index 100%
rename from 002_source/cms/src/app/dashboard/teachers/edit/[customerId]/page.tsx
rename to 002_source/cms/src/app/dashboard/teachers/edit/[id]/page.tsx
diff --git a/002_source/cms/src/app/dashboard/teachers/list/page.tsx b/002_source/cms/src/app/dashboard/teachers/list/page.tsx
index b32c2c0..326c32e 100644
--- a/002_source/cms/src/app/dashboard/teachers/list/page.tsx
+++ b/002_source/cms/src/app/dashboard/teachers/list/page.tsx
@@ -6,7 +6,7 @@
 //
 import * as React from 'react';
 import { useRouter } from 'next/navigation';
-import { COL_TEACHERS } from '@/constants';
+import { COL_USER_METAS } from '@/constants';
 import { LoadingButton } from '@mui/lab';
 import Box from '@mui/material/Box';
 import Card from '@mui/material/Card';
@@ -49,23 +49,30 @@ export default function Page({ searchParams }: PageProps): React.JSX.Element {
   const [currentPage, setCurrentPage] = React.useState<number>(0);
   //
   const [recordCount, setRecordCount] = React.useState<number>(0);
-  const [listOption, setListOption] = React.useState({});
+  const [listOption, setListOption] = React.useState({ filter: '' });
   const [listSort, setListSort] = React.useState({});
 
+  function isListOptionChanged() {
+    return JSON.stringify(listOption) === '{}';
+  }
   //
   const reloadRows = async (): Promise<void> => {
     try {
+      const listOptionTeacherOnly = isListOptionChanged()
+        ? { filter: `role = "teacher"` }
+        : { filter: [listOption.filter, `role = "teacher"`].join(' && ') };
+
       const models: ListResult<RecordModel> = await pb
-        .collection(COL_TEACHERS)
-        .getList(currentPage + 1, rowsPerPage, listOption);
+        .collection(COL_USER_METAS)
+        .getList(currentPage + 1, rowsPerPage, listOptionTeacherOnly);
       const { items, totalItems } = models;
-      const tempLessonTypes: Teacher[] = items.map((lt) => {
+      const tempTeacher: Teacher[] = items.map((lt) => {
         return { ...defaultTeacher, ...lt };
       });
 
-      setLessonCategoriesData(tempLessonTypes);
+      setLessonCategoriesData(tempTeacher);
       setRecordCount(totalItems);
-      setF(tempLessonTypes);
+      setF(tempTeacher);
     } catch (error) {
       logger.error(error);
       setShowError({
diff --git a/002_source/cms/src/app/dashboard/teachers/view/[customerId]/BasicDetailCard.tsx b/002_source/cms/src/app/dashboard/teachers/view/[id]/BasicDetailCard.tsx
similarity index 100%
rename from 002_source/cms/src/app/dashboard/teachers/view/[customerId]/BasicDetailCard.tsx
rename to 002_source/cms/src/app/dashboard/teachers/view/[id]/BasicDetailCard.tsx
diff --git a/002_source/cms/src/app/dashboard/teachers/view/[customerId]/TitleCard.tsx b/002_source/cms/src/app/dashboard/teachers/view/[id]/TitleCard.tsx
similarity index 90%
rename from 002_source/cms/src/app/dashboard/teachers/view/[customerId]/TitleCard.tsx
rename to 002_source/cms/src/app/dashboard/teachers/view/[id]/TitleCard.tsx
index 971bfa7..263056c 100644
--- a/002_source/cms/src/app/dashboard/teachers/view/[customerId]/TitleCard.tsx
+++ b/002_source/cms/src/app/dashboard/teachers/view/[id]/TitleCard.tsx
@@ -10,13 +10,14 @@ import { CaretDown as CaretDownIcon } from '@phosphor-icons/react/dist/ssr/Caret
 import { CheckCircle as CheckCircleIcon } from '@phosphor-icons/react/dist/ssr/CheckCircle';
 import { useTranslation } from 'react-i18next';
 import type { Customer } from '@/components/dashboard/customer/type.d';
+import { Teacher } from '@/components/dashboard/teacher/type.d';
 
 // import type { CrCategory } from '@/components/dashboard/cr/categories/type';
 
-function getImageUrlFrRecord(record: Customer): string {
+function getImageUrlFrRecord(record: Teacher): string {
   // TODO: fix this
   //  `http://127.0.0.1:8090/api/files/${'record.collectionId'}/${'record.id'}/${'record.cat_image'}`;
-  return 'getImageUrlFrRecord(helloworld)';
+  return `http://127.0.0.1:8090/api/files/${record.collectionId}/${record.id}/${record.avatar}`;
 }
 
 export default function SampleTitleCard({ lpModel }: { lpModel: Customer }): React.JSX.Element {
diff --git a/002_source/cms/src/app/dashboard/teachers/view/[customerId]/page.tsx b/002_source/cms/src/app/dashboard/teachers/view/[id]/page.tsx
similarity index 94%
rename from 002_source/cms/src/app/dashboard/teachers/view/[customerId]/page.tsx
rename to 002_source/cms/src/app/dashboard/teachers/view/[id]/page.tsx
index eb77f8f..308840a 100644
--- a/002_source/cms/src/app/dashboard/teachers/view/[customerId]/page.tsx
+++ b/002_source/cms/src/app/dashboard/teachers/view/[id]/page.tsx
@@ -30,13 +30,13 @@ import BasicDetailCard from './BasicDetailCard';
 import TitleCard from './TitleCard';
 import { defaultTeacher } from '@/components/dashboard/teacher/_constants';
 import type { Teacher } from '@/components/dashboard/teacher/type.d';
-import { COL_TEACHERS } from '@/constants';
+import { COL_USER_METAS } from '@/constants';
 
 export default function Page(): React.JSX.Element {
   const { t } = useTranslation();
   const router = useRouter();
   //
-  const { customerId } = useParams<{ customerId: string }>();
+  const { id } = useParams<{ id: string }>();
   //
   const [showLoading, setShowLoading] = React.useState<boolean>(true);
   const [showError, setShowError] = React.useState({ show: false, detail: '' });
@@ -48,9 +48,9 @@ export default function Page(): React.JSX.Element {
   }
 
   React.useEffect(() => {
-    if (customerId) {
-      pb.collection(COL_TEACHERS)
-        .getOne(customerId)
+    if (id) {
+      pb.collection(COL_USER_METAS)
+        .getOne(id)
         .then((model: RecordModel) => {
           setShowLessonCategory({ ...defaultTeacher, ...model });
         })
@@ -64,7 +64,8 @@ export default function Page(): React.JSX.Element {
           setShowLoading(false);
         });
     }
-  }, [customerId]);
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [id]);
 
   // return <>{JSON.stringify({ showError, showLessonCategory }, null, 2)}</>;
 
diff --git a/002_source/cms/src/components/dashboard/teacher/_GUIDELINES.md b/002_source/cms/src/components/dashboard/teacher/_GUIDELINES.md
index 709449f..6302b64 100644
--- a/002_source/cms/src/components/dashboard/teacher/_GUIDELINES.md
+++ b/002_source/cms/src/components/dashboard/teacher/_GUIDELINES.md
@@ -5,18 +5,18 @@
   - default value (defaultValue)
   - empty value (emptyValue)
 
-- `customers-table.tsx`
+- `teachers-table.tsx`
 
 - `confirm-delete-modal.tsx` - delete modal component when click delete button on list
 
-  - `customers-filters.tsx`
-  - `customers-pagination.tsx`
+  - `teachers-filters.tsx`
+  - `teachers-pagination.tsx`
   - `email-filter-popover.tsx`
   - `phone-filter-popover.tsx`
-  - `customers-selection-context.tsx`
+  - `teachers-selection-context.tsx`
 
-- `customer-create-form.tsx` - form to create a new customer
-- `customer-edit-form.tsx` - form to edit a existing customer
+- `teacher-create-form.tsx` - form to create a new teacher
+- `teacher-edit-form.tsx` - form to edit an existing teacher
 
 - `type.d.tsx` - contains type definition
 
diff --git a/002_source/cms/src/components/dashboard/teacher/confirm-delete-modal.tsx b/002_source/cms/src/components/dashboard/teacher/confirm-delete-modal.tsx
index 62cd664..afbb10e 100644
--- a/002_source/cms/src/components/dashboard/teacher/confirm-delete-modal.tsx
+++ b/002_source/cms/src/components/dashboard/teacher/confirm-delete-modal.tsx
@@ -83,12 +83,12 @@ export default function ConfirmDeleteModal({
                 </Avatar>
                 <Stack spacing={3}>
                   <Stack spacing={1}>
-                    <Typography variant="h5">{t('Delete Lesson Type ?')}</Typography>
+                    <Typography variant="h5">{t('Delete Teacher ?')}</Typography>
                     <Typography
                       color="text.secondary"
                       variant="body2"
                     >
-                      {t('Are you sure you want to delete lesson type ?')}
+                      {t('Are you sure you want to delete this teacher ?')}
                     </Typography>
                   </Stack>
                   <Stack
diff --git a/002_source/cms/src/components/dashboard/teacher/teacher-edit-form.tsx b/002_source/cms/src/components/dashboard/teacher/teacher-edit-form.tsx
index 43a174b..6885456 100644
--- a/002_source/cms/src/components/dashboard/teacher/teacher-edit-form.tsx
+++ b/002_source/cms/src/components/dashboard/teacher/teacher-edit-form.tsx
@@ -4,7 +4,7 @@ import * as React from 'react';
 import RouterLink from 'next/link';
 import { useParams, useRouter } from 'next/navigation';
 //
-import { COL_TEACHERS } from '@/constants';
+import { COL_TEACHERS, COL_USER_METAS } from '@/constants';
 import { zodResolver } from '@hookform/resolvers/zod';
 import { LoadingButton } from '@mui/lab';
 //
@@ -89,7 +89,7 @@ export function TeacherEditForm(): React.JSX.Element {
   const router = useRouter();
   const { t } = useTranslation(['lp_categories']);
 
-  const { customerId } = useParams<{ customerId: string }>();
+  const { id: teacherId } = useParams<{ id: string }>();
   //
   const [isUpdating, setIsUpdating] = React.useState<boolean>(false);
   const [showLoading, setShowLoading] = React.useState<boolean>(false);
@@ -123,17 +123,17 @@ export function TeacherEditForm(): React.JSX.Element {
       };
 
       try {
-        await pb.collection(COL_TEACHERS).update(customerId, updateData);
-        toast.success('Customer updated successfully');
+        await pb.collection(COL_USER_METAS).update(teacherId, updateData);
+        toast.success('Teacher updated successfully');
         router.push(paths.dashboard.teachers.list);
       } catch (error) {
         logger.error(error);
-        toast.error('Failed to update customer');
+        toast.error('Failed to update teacher');
       } finally {
         setIsUpdating(false);
       }
     },
-    [customerId, router]
+    [teacherId, router]
   );
 
   const avatarInputRef = React.useRef<HTMLInputElement>(null);
@@ -162,13 +162,13 @@ export function TeacherEditForm(): React.JSX.Element {
       setShowLoading(true);
 
       try {
-        const result = await pb.collection(COL_TEACHERS).getOne(id);
+        const result = await pb.collection(COL_USER_METAS).getOne(id);
         reset({ ...defaultValues, ...result });
         console.log({ result });
 
-        if (result.avatar_file) {
+        if (result.avatar) {
           const fetchResult = await fetch(
-            `http://127.0.0.1:8090/api/files/${result.collectionId}/${result.id}/${result.avatar_file}`
+            `http://127.0.0.1:8090/api/files/${result.collectionId}/${result.id}/${result.avatar}`
           );
           const blob = await fetchResult.blob();
           const url = await fileToBase64(blob);
@@ -176,7 +176,7 @@ export function TeacherEditForm(): React.JSX.Element {
         }
       } catch (error) {
         logger.error(error);
-        toast.error('Failed to load customer data');
+        toast.error('Failed to load teacher data');
         setShowError({ show: true, detail: JSON.stringify(error, null, 2) });
       } finally {
         setShowLoading(false);
@@ -186,9 +186,9 @@ export function TeacherEditForm(): React.JSX.Element {
   );
 
   React.useEffect(() => {
-    void loadExistingData(customerId);
+    void loadExistingData(teacherId);
     // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, [customerId]);
+  }, [teacherId]);
 
   if (showLoading) return <FormLoading />;
   if (showError.show)
diff --git a/002_source/cms/src/components/dashboard/teacher/teachers-filters.tsx b/002_source/cms/src/components/dashboard/teacher/teachers-filters.tsx
index 03c87dd..28bdce4 100644
--- a/002_source/cms/src/components/dashboard/teacher/teachers-filters.tsx
+++ b/002_source/cms/src/components/dashboard/teacher/teachers-filters.tsx
@@ -4,7 +4,7 @@
 //
 import * as React from 'react';
 import { useRouter } from 'next/navigation';
-import { getAllCustomersCount } from '@/db/Customers/GetAllCount';
+import { getAllTeachersCount } from '@/db/Teachers/GetAllCount';
 
 import Button from '@mui/material/Button';
 import Chip from '@mui/material/Chip';
@@ -27,13 +27,15 @@ import GetPendingCount from '@/db/Customers/GetPendingCount';
 import GetActiveCount from '@/db/Customers/GetActiveCount';
 import PhoneFilterPopover from './phone-filter-popover';
 import EmailFilterPopover from './email-filter-popover';
-import type { CustomersFiltersProps, Filters, SortDir } from './type.d';
+import type { TeachersFiltersProps, Filters, SortDir } from './type.d';
+import { logger } from '@/lib/default-logger';
 
 export function TeachersFilters({
   filters = {},
   sortDir = 'desc',
   fullData,
-}: CustomersFiltersProps): React.JSX.Element {
+  //
+}: TeachersFiltersProps): React.JSX.Element {
   const { t } = useTranslation();
 
   const { email, phone, status } = filters;
@@ -129,7 +131,7 @@ export function TeachersFilters({
   React.useEffect(() => {
     const fetchCount = async (): Promise<void> => {
       try {
-        const tc = await getAllCustomersCount();
+        const tc = await getAllTeachersCount();
         setTotalCount(tc);
 
         const bc = await GetBlockedCount();
@@ -140,6 +142,7 @@ export function TeachersFilters({
         setActiveCount(ac);
       } catch (error) {
         //
+        logger.error(error);
       }
     };
     void fetchCount();
diff --git a/002_source/cms/src/components/dashboard/teacher/teachers-table.tsx b/002_source/cms/src/components/dashboard/teacher/teachers-table.tsx
index 397d249..ce215ae 100644
--- a/002_source/cms/src/components/dashboard/teacher/teachers-table.tsx
+++ b/002_source/cms/src/components/dashboard/teacher/teachers-table.tsx
@@ -39,7 +39,10 @@ function columns(handleDeleteClick: (testId: string) => void): ColumnDef<Teacher
           spacing={1}
           sx={{ alignItems: 'center' }}
         >
-          <Avatar src={row.avatar} />{' '}
+          <Avatar
+            src={`http://127.0.0.1:8090/api/files/${row.collectionId}/${row.id}/${row.avatar}`}
+            variant="rounded"
+          />
           <div>
             <Link
               color="inherit"
diff --git a/002_source/cms/src/components/dashboard/teacher/type.d.tsx b/002_source/cms/src/components/dashboard/teacher/type.d.tsx
index 5e6f638..6033a60 100644
--- a/002_source/cms/src/components/dashboard/teacher/type.d.tsx
+++ b/002_source/cms/src/components/dashboard/teacher/type.d.tsx
@@ -5,15 +5,24 @@ export type SortDir = 'asc' | 'desc';
 
 // RULES: core teacher data structure
 export interface Teacher {
-  id: string;
   name: string;
+  //
+  // NOTE: obslete "avatar" and use "avatar_file"
   avatar?: string;
+  avatar_file?: string;
+  //
   email: string;
   phone?: string;
   quota: number;
+
+  // status is obsoleted, replace by state
   status: 'pending' | 'active' | 'blocked';
+  state: 'pending' | 'active' | 'blocked';
+  //
+  id: string;
   createdAt: Date;
   updatedAt?: Date;
+  collectionId: string;
 }
 
 // RULES: form data structure for creating new teacher
@@ -63,7 +72,7 @@ export interface EditFormProps {
 }
 
 // RULES: filter props for teacher search and filtering
-export interface CustomersFiltersProps {
+export interface TeachersFiltersProps {
   filters?: Filters;
   sortDir?: SortDir;
   fullData: Teacher[];
diff --git a/002_source/cms/src/db/Teachers/Delete.tsx b/002_source/cms/src/db/Teachers/Delete.tsx
index b08db9e..73c83ae 100644
--- a/002_source/cms/src/db/Teachers/Delete.tsx
+++ b/002_source/cms/src/db/Teachers/Delete.tsx
@@ -1,6 +1,6 @@
 import { pb } from '@/lib/pb';
-import { COL_TEACHERS } from '@/constants';
+import { COL_USER_METAS } from '@/constants';
 
 export async function deleteTeacher(id: string): Promise<boolean> {
-  return pb.collection(COL_TEACHERS).delete(id);
+  return pb.collection(COL_USER_METAS).delete(id);
 }
diff --git a/002_source/cms/src/db/Teachers/GetActiveCount.tsx b/002_source/cms/src/db/Teachers/GetActiveCount.tsx
index cf92c27..bb5c779 100644
--- a/002_source/cms/src/db/Teachers/GetActiveCount.tsx
+++ b/002_source/cms/src/db/Teachers/GetActiveCount.tsx
@@ -1,8 +1,8 @@
-import { COL_TEACHERS } from '@/constants';
+import { COL_TEACHERS, COL_USER_METAS } from '@/constants';
 import { pb } from '@/lib/pb';
 
 export default async function GetActiveCount(): Promise<number> {
-  const { totalItems: count } = await pb.collection(COL_TEACHERS).getList(1, 1, {
+  const { totalItems: count } = await pb.collection(COL_USER_METAS).getList(1, 1, {
     filter: 'status = "active"',
   });
   return count;
diff --git a/002_source/cms/src/db/Teachers/GetAllCount.tsx b/002_source/cms/src/db/Teachers/GetAllCount.tsx
index d2e86b4..06a50e6 100644
--- a/002_source/cms/src/db/Teachers/GetAllCount.tsx
+++ b/002_source/cms/src/db/Teachers/GetAllCount.tsx
@@ -1,7 +1,7 @@
 import { pb } from '@/lib/pb';
-import { COL_TEACHERS } from '@/constants';
+import { COL_USER_METAS } from '@/constants';
 
 export async function getAllTeachersCount(): Promise<number> {
-  const result = await pb.collection(COL_TEACHERS).getList(1, 1);
+  const result = await pb.collection(COL_USER_METAS).getList(1, 1, { filter: `role = "teacher"` });
   return result.totalItems;
 }