Fizzing it up
This is a level 2 number activity from the Figure It Out series. It relates to stage 5 of the number framework. A PDF of the student activity is included.
About this resource
Figure It Out is a series of 80 books published between 1999 and 2009 to support teaching and learning in New Zealand classrooms.
This resource provides the teachers’ notes and answers for one activity from the Figure It Out series. A printable PDF of the student activity can be downloaded from the materials that come with this resource.
Specific learning outcomes:
- Know addition facts.
Fizzing it up
Achievement objectives
NA2-3: Know the basic addition and subtraction facts.
Required materials
- Figure It Out, Level 2–3, Basic Facts, "Fizzing it up", page 5
- 2 tens frames
- counters
See Materials that come with this resource to download:
- Fizzing it up activity (.pdf)
- Ten frames CM (.pdf)
Activity
Tens frames are particularly good aids to help students see patterns that connect the basic addition and subtraction facts. Students should have enough prior experience with tens frames to be able to instantly recognise patterns of numbers up to 10 when they are quickly shown to them and then hidden. (This is known as “subitising”.) An interesting result of this is that students develop a “subtract from ten” view of the numbers six to nine, that is:
This facilitates the development of an “up over ten” strategy for the more difficult addition facts. For example, consider 8 + 7:
You could ask students to draw a picture in the air of how they worked out solutions. Another possible strategy for 8 + 7 is a comparison with doubles patterns:
The activity on page 5 suggests a growing series of tens frames. It is also a useful method for learning basic facts through pattern. For example:
1.
4 + 4
2.
4 + 5 = 9 4 + 6 = 10 4 + 7 = 11
4 + 8 = 12 4 + 9 = 13 4 + 10 = 14
3.
6 + 6, as shown on the page
4.
5.
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