A Day at the Beach (Counting in Groups)
CBSE · Class 2 · Mathematics
Quick revision notes for A Day at the Beach (Counting in Groups) — CBSE Class 2 Mathematics. Key concepts, formulas, and definitions for last-minute revision.
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Key Topics to Revise
Counting in Groups
- Objects can be counted one by one or in groups.
- Groups of ten make counting faster and easier.
- Sea-side objects such as coconuts, boats, children, and oranges can be counted by grouping.
Trays, Shells, and Bundles
- Chikoos are arranged in trays of ten.
- Shells are grouped to make bracelets and necklaces.
- A counting exercise with tens and ones cards ends with 31 shells.
Blocks and Ten Strips
- One ten strip stands for 10 units.
- One block stick stands for a larger group shown in the activity.
- The table shows 24 as 2 ten strips and 4 units.
Making 100
- Ten strips can be joined to make a 100 units grid.
- Units can be exchanged for a ten strip when there are 10 or more units.
- The game uses dice, a banker, units, and ten strips.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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