About Certifications

Prove your mastery and get ready to tutor.

Become a Tutor

Learn, grow, and give back through tutoring.

Session Safety Measures

How we keep virtual tutoring safe.

Help Desk

Have questions? Search our FAQ.

Community Events

Game nights, product updates, and more.

Study Spaces

Stay motivated in virtual study rooms.

Leaderboards

Check out the community's impact.

Stories

Testimonials from the Schoolhouse community.

Blog

Keep up with our volunteer-run blog.

Callista S

Tutor

@callisetiawan

Joined Sep 2023 · She/Her · 6:04 AM Local

About

Hello! I'm a sophomore from Indonesia who is studying in Singapore and is teaching algebra here. I'm currently self-learning economics and finance as I hope to work in the finance industry in the future. In my free time I love to sleep, go around town, watch true crime/anime and dance! :D

Tutor

Oct 2023 - Present

Singapore

Stats

1001

Badges

Countries Reached

Learners Impacted

Sessions Hosted

2,300

Tutoring Minutes

Certifications

Algebra 1

100% Mastery

Algebra 2

6 / 12 Topics

Pre-Algebra

6 / 15 Topics

Connections

Followers (26)

Following (2)

Khan Academy Profile

callisetiawan

Upcoming Sessions

Dialogue Club (4 sessions)

Saturdays 12:30 PM, Sundays 6:00 AM

Join a virtual [Dialogues Club](https://www.schoolhouse.world/dialogues) to form a community with students from around the world. Dialogue Clubs meet every other week to discuss a new topic. By participating in 3+ Dialogue sessions, you will get a Dialogues portfolio you can submit with your college applications to our university partners. You can see the schedule for this Dialogue Club [here](https://coda.io/d/_dl1TAeii71O/Callista-S-Vanshika-R-Dialogue-Club-Hub_su9mgJR_), including the topics the club will cover.

Callista S and 2 others

Registration full.

Featured Feedback

Thank you for the sessions! It is clear that you manage the club with a lot of care, patience, and well-directed effort—I appreciate it a lot, and am always looking forward to another dialogue club! Cheers!

Learner · 4 mo. ago

“

Thank you so much for being such amazing hosts! You created a warm environment that made it comfortable for me to introduce myself and share my opinions. See you soon :)

Learner · 5 mo. ago

“

Thank you for being so kind, welcoming, and willing to listen during this session! Am glad I could join here

Learner · 5 mo. ago

“

thank you for the session

Learner · 11 mo. ago

“

Badges

New Kid in Class
Attend 1 session
Explorer
Attend 5 sessions
Voyager
Attend 10 sessions
Show Your Stuff
Get 1 certification
Thinker
Get 5 certifications
Whiz Kid
Get 10 certifications
Scholar
Get 25 certifications
Red Delicious
Host 1 session