Number-Line Landing
A number line uses equal distances for equal steps. Read the interval labels before placing a number between them.
Before you try
Before you play, make a prediction: Halfway between 3,000 and 3,100 is… Explain what you expect and what part of the model will help you check it.
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Interactive activity
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What happened?
Move a control to see what changes and why.
The game practises one idea at a time with simple drawn pictures. Check the same idea with real objects and your NCERT textbook (Chapter 4: Thousands Around Us, pages 39–61).
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Try these ideas
- Move the marker to the target and compare distances to both neighbours.
- Try a new puzzle with ↻. Describe what changed and which mathematical rule stayed the same.
- Complete a round, then explain your method before you move to the next one.
Why it works
A number line uses equal distances for equal steps. Read the interval labels before placing a number between them.
Halfway between 2,000 and 2,100 is 2,050. Move the marker to the target and compare distances to both neighbours.
Count spaces between tick marks. Eleven marks create ten intervals.
This activity connects to Thousands Around Us, NCERT Class 4 maths, printed pages 39–61. Use the picture or objects to explain each step before relying on a calculation. The game practises one part of the chapter at a time; the other three activities extend the chapter’s ideas.
Worked example: A line goes from 2,000 to 2,100 in ten equal intervals. Where is 2,060? Each interval represents 100 ÷ 10 = 10. 2,060 is six intervals after 2,000.
Check your understanding
Question 1 of 2
Halfway between 3,000 and 3,100 is…
Which is the expanded form of 6,040?
Explain it in your own words
What changed? Why did it happen? Where might you notice this in everyday life?
For parents & teachers
- Try with everyday materials. Move the marker to the target and compare distances to both neighbours. Ask the child to make a new example using paper, counters, household objects or a labelled sketch.
- Listen to the explanation. Count spaces between tick marks. Eleven marks create ten intervals. Ask “How could we check?” and encourage a second representation of the same idea.