Mathematics · Class 2

Active learning ideas

Numbers Before, After, and Between

Active learning works well for this topic because young learners need to physically move with numbers to understand their order. Saying numbers aloud while walking or placing cards helps children feel the rhythm of counting, which makes abstract ideas like ‘before’ and ‘after’ become real. Movement also keeps them engaged and reduces confusion between counting forward and backward.

• CBSE Learning Outcomes
• CBSE: Numbers up to 100 - Class 2

• 20–35 min
• Pairs → Whole Class
• 4 activities

Activity 01

• Think-Pair-Share
• 25 min · Pairs

Pair Game: Number Neighbours Relay

Pairs stand at opposite ends of the room holding number cards from 1 to 100. Call a number; one partner runs to place the before/after card next to a classmate's number, then tags their partner for the between task. Switch roles after five rounds and discuss correct placements.

Predict the number that comes just before 70 and just after 70.

Facilitation Tip

During the Number Neighbours Relay, stand with the class and model the first round yourself to show how to hold the number card and call the next partner clearly.

What to look for

Write three numbers on the board: 35, ___, 37. Ask students to write the missing number on their mini-whiteboards. Then, write 50 on the board and ask them to write the number that comes before it and the number that comes after it.

• Understand
• Apply
• Analyze
• Self-Awareness
• Relationship Skills

Activity 02

• Think-Pair-Share
• 35 min · Small Groups

Small Group: Number Line Hunt

Provide each small group with a large number line (0-100) and hidden sticky notes with numbers. Groups hunt, place notes in before/after/between positions, and justify choices to the class. Extend by creating their own challenge sequences.

Explain how knowing the order of numbers helps you find the number between 45 and 47.

Facilitation Tip

For the Number Line Hunt, place only five numbers on the line at a time so the task feels manageable and students can focus on neighbours without feeling overwhelmed.

What to look for

Give each student a slip of paper. Ask them to write the number that comes after 82 and the number that comes before 41. Also, ask them to write a sequence of three numbers where 60 is the middle number.

• Understand
• Apply
• Analyze
• Self-Awareness
• Relationship Skills

Activity 03

• Think-Pair-Share
• 30 min · Whole Class

Whole Class: Human Number Line

Arrange students in a line representing 0-100. Call instructions like 'step forward for after 45' or 'squeeze in between 30 and 32.' Rotate roles so all participate, then quiz verbally on positions.

Construct a sequence of three numbers where the middle number is 50.

Facilitation Tip

In the Human Number Line, have students call out their numbers in order while moving, so everyone hears the sequence and spots any gaps together.

What to look for

Ask students: 'Imagine you are counting your marbles and you have 52. How do you know which number comes next without counting all the way from 1?' Encourage them to explain their thinking about the order of numbers.

• Understand
• Apply
• Analyze
• Self-Awareness
• Relationship Skills

Activity 04

• Think-Pair-Share
• 20 min · Individual

Individual: Bead String Sequencing

Give each child a bead string (abacus-like) with 100 beads. They slide beads to show numbers before/after/between given ones, sketch results, and share one example with a partner.

Predict the number that comes just before 70 and just after 70.

What to look for

Write three numbers on the board: 35, ___, 37. Ask students to write the missing number on their mini-whiteboards. Then, write 50 on the board and ask them to write the number that comes before it and the number that comes after it.

• Understand
• Apply
• Analyze
• Self-Awareness
• Relationship Skills

A few notes on teaching this unit

Teachers should pair counting drills with movement so students feel the difference between forward and backward steps. Avoid relying only on worksheets because children need to experience the one-unit shift physically. Research shows that children who move while learning numbers develop stronger mental number lines. Keep corrections immediate and visual—point to where a student should stand or place a card while explaining the step.

By the end of these activities, students should confidently identify the number immediately before, after, or between any two numbers up to 100. They will do this while moving, talking, and using materials, showing that they see numbers as connected rather than separate. Their explanations will include phrases like ‘one step back’ or ‘middle number’ without counting from one.

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Watch Out for These Misconceptions

• During the Pair Game: Number Neighbours Relay, watch for students who always subtract or add ten when finding neighbours. When this happens, pause the game and ask the pair to walk only one step back or forward while saying the number aloud together.

  Provide number cards in the teens and twenties so they see that the change is always by one unit, not ten.

• During the Small Group: Number Line Hunt, watch for students who say no number comes between two identical numbers like 50 and 50. When this happens, have the group place two 50 cards on the line and ask them to find a number that fits between them. Let them test and discuss why no integer fits.

• During the Whole Class: Human Number Line, watch for students who jump ahead by more than one when asked to move to the next number. Stop the sequence and ask the class to clap once for each step while a student moves from 59 to 60 to 61, reinforcing the one-step rule.

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Methods used in this brief

• Think-Pair-Share