Place Value to 100 — Year 2 Lesson Plan
National Curriculum: Mathematics — Number: place value (within 100), Year 2
Overview
Pupils extend their understanding of place value to numbers up to 100. They learn to represent, partition, and order 2-digit numbers using tens and ones, read and write numbers in numerals and words, and use this understanding to compare and sequence numbers.
Learning Objectives
- Read and write all numbers to 100 in numerals and words.
- Represent 2-digit numbers using tens and ones (Dienes, place value charts).
- Partition 2-digit numbers into tens and ones.
- Order and compare numbers to 100 using <, >, and =.
Key Vocabulary
Suggested Lesson Structure
Show a place value chart with tens and ones. Drop in Dienes cubes and rods. Pupils say the number. Start simple (24) and increase difficulty (73, 60, 9, 100).
Model partitioning: 47 = 40 + 7. Connect to Dienes: 4 rods (tens) and 7 cubes (ones). Introduce the symbols > and <: use the crocodile analogy (opens towards the bigger number). Compare pairs of numbers using a place value chart — compare tens first, then ones.
Pupils partition numbers using a place value grid, then compare pairs of numbers using > < =. Sequence five 2-digit numbers on a number line.
Pupils complete a differentiated worksheet: partition numbers, write numbers in words, compare using symbols, and a reasoning challenge ('I am a 2-digit number. My tens digit is 3 more than my ones digit. What could I be?').
Quick-fire: teacher holds up Dienes. Pupils write the number on a whiteboard. Include near-multiples of 10 (e.g. 29, 51) to check for confusion.
Common Misconceptions
- Reversing digits: writing 73 as '37' — use a place value chart to show which digit belongs where.
- Confusing the value of a digit with its face value: the '4' in 47 is worth 40, not 4.
Prior Knowledge
Pupils should already be able to:
- Secure understanding of place value for numbers to 20.
- Ability to count in 2s, 5s, and 10s.
- Experience with ten frames and Dienes cubes.
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