Year 1
Performance descriptor: Read and write mathematical symbols: +,
- and =
Assessment ideas / questions / activities
Remembering
 Sums using the equals sign to balance each side
3+7=
7 + 3=
10 – 7 =
10 – 3 =
10 – 0 =
0 + 10 =
Understanding
Missing numbers
 Fill in the missing numbers (using a range of practical resources to support)
12 +
= 19
20 =3


Can they understand and use the vocabulary based around these symbols?
E.g. add, how many more, more than, plus
Pictures of each symbol which can link to maths vocab
Applying

Word problems – which symbol / calculation needed

If I eat one of these apples how many will be left? Write the number sentence
using the correct mathematical symbols.
Evaluating / Analysing
Making an estimate

Pick (from a selection of number sentences) the ones where the answer is 8
or 9.
Is it true that?

Is it true that 3+4 = 4 + 3?

What other number sentences do you know if 3 + 4 = 7?
http://nrich.maths.org/2354
http://www.ictgames.com/magicSquare/index.html


Use the magic square to make all the numbers add up to the total in the
magic hat. Can they write the number sentences using the symbols?
Differentiation: Using 4 boxes instead 9, using a smaller/larger total.
Creating



Can they create their own missing number problems / word problems?
Give children a picture i.e. one of the posters from
http://www.cimt.plymouth.ac.uk/projects/mepres/primary/posters/poster4.pdf
Ask the children to write number sentences i.e. 6 toys – 4 toys = 2 toys