diff --git a/dao/checkin.go b/dao/checkin.go
index 3056c0f..8f7cf71 100644
--- a/dao/checkin.go
+++ b/dao/checkin.go
@@ -71,9 +71,14 @@ func (c CheckinDAO) SaveUserActivity(userActivity *po.UserActivity) {
 		panic(err)
 	}
 }
-func (c CheckinDAO) FindAllActivities() []po.Activity {
+func (c CheckinDAO) FindAllActivities(isTeacher bool) []po.Activity {
 	var arr []po.Activity
-	err := c.Tx.Find(&arr).Error
+	var err error
+	if isTeacher {
+		err = c.Tx.Find(&arr, "teacher_available=?", true).Error
+	} else {
+		err = c.Tx.Find(&arr).Error
+	}
 	if err != nil {
 		panic(err)
 	}
diff --git a/dao/user.go b/dao/user.go
index dbbfea7..9fb9403 100644
--- a/dao/user.go
+++ b/dao/user.go
@@ -42,6 +42,7 @@ func (u UserDAO) CreateUser(username string, realName string) *po.User {
 		Username: username,
 		RealName: realName,
 		RoleID:   1,
+		Type:     1,
 	}
 	err := u.Tx.Create(&user).Error
 	if err != nil {
diff --git a/data/po/checkin.go b/data/po/checkin.go
index db7e4b1..644dc6a 100644
--- a/data/po/checkin.go
+++ b/data/po/checkin.go
@@ -7,11 +7,12 @@ import (
 )
 
 type Activity struct {
-	ID       int    `json:"id"`
-	Category string `json:"category"`
-	Name     string `json:"name"`
-	Image    string `json:"image"`
-	Credit   int    `json:"credit"`
+	ID               int    `json:"id"`
+	Category         string `json:"category"`
+	Name             string `json:"name"`
+	Image            string `json:"image"`
+	Credit           int    `json:"credit"`
+	TeacherAvailable int    `json:"teacher_available"`
 }
 
 func (a Activity) TableName() string {
diff --git a/data/po/user.go b/data/po/user.go
index e81caa3..e6e8e02 100644
--- a/data/po/user.go
+++ b/data/po/user.go
@@ -6,4 +6,5 @@ type User struct {
 	RealName string `json:"real_name"`
 	Credit   int    `json:"credit"`
 	RoleID   int    `json:"role_id"`
+	Type     int    `json:"type"`
 }
diff --git a/router/router.go b/router/router.go
index 610d897..654e0bd 100644
--- a/router/router.go
+++ b/router/router.go
@@ -16,12 +16,13 @@ func Setup(engine *gin.Engine) {
 		user.POST("/login", app.HandlerFunc(hub.Login))
 		user.Use(middleware.JWT(1))
 		user.GET("/me", app.HandlerFunc(hub.Me))
+		user.POST("/set_type", app.HandlerFunc(hub.SetType))
 	}
 	checkin := engine.Group("/checkin")
 	{
 		hub := service.ExCheckinService
-		checkin.GET("/list_activities", app.HandlerFunc(hub.ListActivities))
 		checkin.Use(middleware.JWT(1))
+		checkin.GET("/list_activities", app.HandlerFunc(hub.ListActivities))
 		checkin.POST("/submit", app.HandlerFunc(hub.Submit))
 		checkin.GET("/get_my_activities_today", app.HandlerFunc(hub.GetMyActivitiesToday))
 		checkin.POST("/set_status", middleware.JWT(2), app.HandlerFunc(hub.SetStatus))
diff --git a/service/checkin.go b/service/checkin.go
index 5deeb60..3d146cc 100644
--- a/service/checkin.go
+++ b/service/checkin.go
@@ -63,7 +63,12 @@ func (c CheckinService) SetStatus(aw *app.Wrapper) app.Result {
 	return aw.Success(userActivity)
 }
 func (c CheckinService) ListActivities(aw *app.Wrapper) app.Result {
-	return aw.Success(checkinDAO.FindAllActivities())
+	user := userDAO.FindUserByID(aw.ExtractUserClaims().UserID)
+	isTeacher := false
+	if user.Type == 2 {
+		isTeacher = true
+	}
+	return aw.Success(checkinDAO.FindAllActivities(isTeacher))
 }
 func (c CheckinService) ListUserActivities(aw *app.Wrapper) app.Result {
 	type StatusReq struct {
diff --git a/service/user.go b/service/user.go
index 876af7f..462e0ed 100644
--- a/service/user.go
+++ b/service/user.go
@@ -31,3 +31,16 @@ func (u UserService) Login(aw *app.Wrapper) app.Result {
 func (u UserService) Me(aw *app.Wrapper) app.Result {
 	return aw.Success(userDAO.FindUserByID(aw.ExtractUserClaims().UserID))
 }
+func (u UserService) SetType(aw *app.Wrapper) app.Result {
+	type TypeReq struct {
+		Type int `form:"type" binding:"required,gte=1,lte=2"`
+	}
+	var req TypeReq
+	if err := aw.Ctx.ShouldBind(&req); err != nil {
+		return aw.Error(err.Error())
+	}
+	user := userDAO.FindUserByID(aw.ExtractUserClaims().UserID)
+	user.Type = req.Type
+	userDAO.SaveUser(user)
+	return aw.Success(user)
+}