YEAR 1 · PRIMARY MATHEMATICS
Addition and subtraction.
Join, take away and find missing parts using numbers to twenty.
5 lessons
Work through the topic
Learn the method, follow the examples, then try the worksheet.
- 01
Number bonds within 20
Learn pairs of parts that join to make totals up to twenty.
- 02
Joining and taking away
Show what happens when groups join or some objects are taken away.
- 03
Part–whole models
Use a part–whole model to connect a total to its two parts.
- 04
Counting-on and make-ten strategies
Count on from a useful number or make a ten to add efficiently.
- 05
Finding a missing part
Find a hidden amount by using what you know about the whole and its parts.
AFTER THE LESSONS
Topic review Topic review
Revisit the key ideas and return to any lesson you want to practise.