Algebra in the primary curriculum

Equations - fifth and sixth class

Content for fifth class

The child should be enabled to

• Translate number sentences with a frame into word problems and vice versa.
Create number stories to describe a given number sentence.
How many teams of four can the teacher make for relays from a class of twenty-eight children? i.e. 28 / 4 = __
A man has twenty-eight windows to clean; it takes him an hour to clean four; how long will it take him altogether?
Construct number sentences to describe mathematically a given word problem.
• Solve one-step number sentences and equations e.g. 75 - 43 = __ or 3.5 x __ = 14 or 25% of __ = 15.

Content for sixth class

The child should be enabled to

• Translate word problems with a variable into number sentences.
Peter cut a length of ribbon into five equal parts; each part was 30 cm long. How long was the ribbon before it was cut? Solution is x / 5 - 30
• Solve one-step number sentences and equations e.g. -3 + +6 =__ or -4 + __ = +1
or 10 x __=- 8 x 5.