Addition as combining or putting together two
Understand addition as combining or putting together two groups to find the total
What a learner can do afterwards
- Model 'putting together' with physical objects and say the total
- Act out an 'add to' situation (e.g. 3 children arrive, then 2 more join)
- Explain that addition means finding how many altogether
The lesson
Addition means joining two groups. You put them together and count all of them. That number is the total, or how many altogether.
Tap each star and count out loud.
Try it together
Leo has 3 apples. A friend gives him 2 more apples. Now Leo has 5 apples altogether.
Tap each apple and count out loud.
Good to know
When two groups join, ask how many altogether. Count every one from both groups.
Putting two groups together and counting them all is addition.
Watch it
Where it sits
Learn first
This opens up
Numbers up to 10 into pairsReading +, −, and = symbolsSimple Fraction SumsAdding money and giving changeFinding a missing number in additionFluent adding and subtracting within 5Odd or EvenRepresenting Addition and SubtractionAddition and subtraction strategiesMultiplication as repeated additionAddition in any orderGrouping numbers to addSpotting mathematical patternsMaking Sense of Problems
Where this leads
Jobs that lean on this skill. Follow one to see everything it is built on.
Then practise
8 questions wait behind this lesson, each with its answer explained. Every answer feeds the sky: stars light as they are learned, and dim when it is time to come back.