Class 3 Mathematics

Chapters

1. 1Counting and Recording: Marks, Tallies and GroupsLesson: Counting and Recording: Marks, Tallies and Groups · 15 sections · chapter quiz

   Long ago, people who could not write numbers still kept track of their animals by making marks. Can a simple mark help you check that nothing is missing?

   • • I can keep count by making one mark for each object.
   • • I can record counts with tally marks grouped in fives.
   • • I can count large collections quickly by grouping in 5s and 10s.
2. 23D Shapes: Faces, Edges and ViewsLesson: 3D Shapes: Faces, Edges and Views · 15 sections · chapter quiz

   Old boxes, bottles and caps can become rockets, robots and animal faces. Let us look closely at the shapes we build with!

   • • I can name cubes, cuboids, cylinders, cones and spheres.
   • • I can count faces, edges and corners of a cube and cuboid.
   • • I can draw how an object looks from the top, front and side.
3. 3Numbers up to 200Lesson: Numbers up to 200 · 15 sections · chapter quiz

   When a batter scores 200 runs, we call it a double century! Let us explore numbers all the way to 200.

   • • I can count, read and write numbers up to 200.
   • • I can show a number as hundreds, tens and ones.
   • • I can find numbers before, after and between up to 200.
4. 4Addition and Subtraction StrategiesLesson: Addition and Subtraction Strategies · 15 sections · chapter quiz

   Nani Maa hides some marbles under a handkerchief and still knows how many are hidden! What is her trick?

   • • I can find a missing part when I know the whole and one part.
   • • I can use addition facts to solve subtraction.
   • • I can add and subtract mentally using tens and patterns.
5. 52D Shapes, Lines and PatternsLesson: 2D Shapes, Lines and Patterns · 15 sections · chapter quiz

   A rangoli at the doorstep is full of shapes and lines. Let us discover the maths in rangoli designs!

   • • I can identify straight and curved lines in shapes.
   • • I can name and describe triangles, squares, rectangles and circles.
   • • I can draw shapes on a dot grid and make tiling patterns.
6. 6Numbers up to 999: Hundreds, Tens and OnesLesson: Numbers up to 999: Hundreds, Tens and Ones · 15 sections · chapter quiz

   At the mela there are hundreds of toran triangles and balloons. Let us count beyond 200, all the way to 999!

   • • I can read and write numbers up to 999.
   • • I can show numbers using hundreds, tens and ones.
   • • I can count on and back in 1s, 10s and 100s.
7. 7Multiplication: Equal Groups and Times TablesLesson: Multiplication: Equal Groups and Times Tables · 15 sections · chapter quiz

   For Raksha Bandhan, Gopal's family arranges sweets on plates. If each plate has 4 laddoos and there are 5 plates, how many laddoos are there?

   • • I can describe equal groups using 'times' and ×.
   • • I can use repeated addition and arrays to multiply.
   • • I can recall the 2, 3, 4, 5 and 10 times tables.
8. 8Fair Share: Halves, Quarters and Equal SharingLesson: Fair Share: Halves, Quarters and Equal Sharing · 15 sections · chapter quiz

   Two friends want to share one paratha. If one piece is bigger, is it fair? Let us learn to share equally!

   • • I can share objects equally among people.
   • • I can split a whole into equal halves and quarters.
   • • I can check whether parts are equal.
9. 9Comparing, Ordering and Estimating 3-Digit NumbersLesson: Comparing, Ordering and Estimating 3-Digit Numbers · 15 sections · chapter quiz

   Birbal said there were 963 crows in the city. Is that more or less than 936? Let us learn to compare big numbers!

   • • I can compare 3-digit numbers using >, < and =.
   • • I can order 3-digit numbers from smallest to largest.
   • • I can place numbers on a number line and round to the nearest ten or hundred.
10. 10Measuring Length: Centimetres and MetresLesson: Measuring Length: Centimetres and Metres · 15 sections · chapter quiz

    Leena and Adi measure the same table with their hand spans but get different answers. Who is right? Let us find out!

    • • I can explain why we need standard units.
    • • I can measure length in centimetres using a ruler.
    • • I can use metres for longer lengths and know 1 m = 100 cm.
11. 11Capacity and Weight: Litres and KilogramsLesson: Capacity and Weight: Litres and Kilograms · 15 sections · chapter quiz

    Chintu is challenged to drink 6 glasses of juice. Should he take the challenge? It depends on how big the glasses are!

    • • I can compare capacities by filling and counting.
    • • I can use litres (L) and millilitres (mL) in simple situations.
    • • I can compare weights and use kilograms (kg) and grams (g).
12. 12Adding and Subtracting 3-Digit NumbersLesson: Adding and Subtracting 3-Digit Numbers · 15 sections · chapter quiz

    Kishan's nursery had 364 saplings. He brought 52 more from a friend's village. How many saplings does he have now?

    • • I can add 3-digit numbers with and without regrouping.
    • • I can subtract 3-digit numbers with and without regrouping.
    • • I can solve word problems and check answers.
13. 13Time: Calendars and ClocksLesson: Time: Calendars and Clocks · 15 sections · chapter quiz

    Appa's new calendar is missing July! Can you work out the days of July from another month? Let us become time detectives!

    • • I can read a calendar to find days and dates.
    • • I can know the number of days in each month.
    • • I can read the time to the hour, half hour and quarter hour on a clock.
14. 14Symmetry, Patterns and Money at the FairLesson: Symmetry, Patterns and Money at the Fair · 15 sections · chapter quiz

    At a big craft fair, shops are decorated with designs that look the same on both sides. And every stall has prices to work out. Let us explore!

    • • I can find lines of symmetry in shapes and designs.
    • • I can continue and create patterns.
    • • I can add prices and find change in rupees.