Oustad
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More than 10,000 students have prepared for the BAC with us

Your child prepares for the BAC step by step and understands, instead of memorising.

Clear lessons, exercises solved step by step with the full worked answer, and the quiz. Everything follows your child’s own track and the official programme, so they understand and keep moving forward.

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  • 100% Algerian platform
  • Free lessons and exercises every day
  • No bank card needed

On the App Store, and coming soon to Google Play.

Real numbers from the Oustad platform

  • +10,000 students have prepared for the BAC with us
  • ~100,000 answers given in the quiz
  • Thousands of exercises solved step by step

Your child works hard, but the revision has no order to it?

  1. 1

    Hours disappear between the predictions going around on Facebook, the endless videos on YouTube and a folder full of mixed up PDFs.

  2. 2

    Private lessons cover a few hours a week. The rest of the time your child is on their own, with no direction and no idea what to revise.

  3. 3

    A lot of effort with no clear path ahead, and the pressure builds as the BAC gets closer.

See it for yourself

How Oustad helps your child understand and pass

Everything sits in one place, in an order that was built for them.

Physics · Projectile motion

نُسمّي أعلى ارتفاع يبلغه المقذوف السهم zS=v02sin2α2g، والمسافة الأفقية التي يقطعها عند عودته إلى ارتفاع الانطلاق المدى xP=v02sin(2α)g.

عند سرعة ابتدائية ثابتة، يتحقق أقصى مدى عند α=45°، لأن sin(2α) يبلغ قيمته العظمى.

v0=20,m/s و g=10,m/s2

Peak10.0 m Range34.6 m
z x 30°
30°

Drag the slider and watch the curve

Mathematics · Oblique asymptote

لتكن الدالة f المعرفة على ℝ \ {1} بـ f(x) = x2 - x + 2x - 1.

The question 2 pts

بيّن أنه من أجل كل x من Df: f(x) = x + 2x-1

The worked answer
  1. 1 نجري القسمة الإقليدية لكثيرة الحدود x2 - x + 2 على x - 1.
  2. 2 نلاحظ أن x × (x - 1) = x2 - x، ومنه x2 - x + 2 = x(x-1) + 2.
  3. 3 نقسم الطرفين على x - 1: f(x) = x(x-1)x-1 + 2x-1 = x + 2x-1
  4. 4 وهو المطلوب.
Mathematics · Direction of variation

لتكن f دالة معرفة على ℝ حيث f'(x) = (x-1)(x+2). ما هو اتجاه تغير f على المجال ]-2, 1[؟

Pick an answer to try it
Mathematics · Differentiation
Photo from the notebook
سلسلة تمارين · الاشتقاق

نعتبر الدالة f المعرفة بـ f(x) = √cos(2x) + 2.

بيّن أن f قابلة للاشتقاق على ℝ، ثم عيّن f'(x).

Reading
Solved step by step
  1. 1 نضع u(x) = cos(2x) + 2، ومنه u'(x) = -2sin(2x).
  2. 2 نطبّق صيغة اشتقاق الجذر: f'(x) = u'(x)2√u(x) = -2sin(2x)2√cos(2x) + 2
  3. 3 وبتبسيط الكسر: f'(x) = -sin(2x)√cos(2x) + 2
Parent view · your child’s work

Your child studied for 42 minutes today.

Last session at 19:40

5 days in a row

Say a kind word tonight. A little encouragement is what makes them come back tomorrow.

This week
W T F S S M T
  • Quiz Mathematics 12 min · 19:40 9/12 correct answers
  • Lesson started Adjacent sequences Numerical sequences · 18:45
  • Lesson finished Projectile motion in a gravitational field Evolution of a mechanical system · 18:10
Try the parent screen
For parents

See with your own eyes what your child has really worked on

  • The official programme of their track

    They study the official ministry programme for their own track, term by term, without losing time on Facebook rumours.

  • Follow the work in detail

    You see the lessons and the exercises your child has done and you know whether the revision is regular, without having to stand over them.

  • Know what still needs work

    The platform shows you the subjects and the chapters that still need attention, so you can guide them without guessing.

Look at what they revised so you can say a kind word and encourage them, not to watch over them.

3 steps

How it works

  1. 1

    Sign up and pick the track

    Create an account with your child and pick their track from the 6 BAC tracks. From there they find the ministry programme ready and organised, so they can start revising properly instead of getting lost on Facebook.

    • Creating the account and picking the track
    • Every official chapter inside the app
    • Lessons ordered by the official programme
  2. 2

    They learn and they practise

    Your child reads the lessons screen by screen, with no long videos. They solve the exercises step by step and get a detailed worked answer at the end, then move on to the quiz to lock things in. They can also photograph an exercise from their notebook and the app solves it.

    • Lessons shown one idea at a time
    • Exercises solved progressively
    • A photo of a notebook exercise, solved
  3. 3

    See where they stand

    You open your account and you see how many minutes your child worked today, the lessons they finished, the exercises they solved, their quiz score and the subjects still left. You follow the road to the BAC with a clear head.

    • Revision time per day and per week
    • The subjects that need revision
    • The last time they studied
Sign up and start today for free

Every BAC subject in one place

You find every core and secondary subject, treated with care.

The lessons and the exercises cover all 6 tracks, each one on its official programme.

  • Mathematics
  • Physics
  • Natural sciences
  • Arabic
  • French
  • English
  • Philosophy
  • History and geography
  • Islamic education
  • Economics and management
  • Accounting and finance
  • Law
  • Spanish
  • Italian
  • German
  • Civil engineering
  • Electrical engineering
  • Mechanical engineering
  • Process engineering

Why you can trust Oustad

  • A 100% Algerian platform, built for the Algerian BAC.

  • The content follows the official programme and yearly progression, and the BAC papers from 2008 to 2026.

  • Payment is local and safe through CCP and BaridiMob, and your information stays protected.

What parents ask us

Can we try the platform for free?

Yes. A free version gives your child one lesson and 3 exercises a day, with the quiz free and unlimited.

How do I pay for the subscription?

Payment goes through a BaridiMob transfer or a normal CCP transfer. You photograph the receipt, upload it on the platform and the account opens.

Subscription details →
Does the programme really match my child’s track?

Yes. The platform covers all 6 tracks, and every student finds the lessons and the exercises for their own track.

Which subjects are on the platform?

Every BAC subject, science and humanities alike, each one split by the official chapters and lessons.

Do you have a phone app?

Yes, the iPhone app is already on the App Store and the Android app is coming soon. On a computer you use the website.

How do I know my child really understands instead of guessing the answers?

The platform has exercises that ask for the full solution steps with a detailed worked answer, and it shows you the strong points, the weak points and the real time spent revising.

On results day, you will be proud of them

Help your child start organised revision today, and reach the BAC ready and sure of themselves.

Start the free trial

On the App Store, and coming soon to Google Play.