Difference between revisions of "Fractions: Addition with same denominator"
From wikisori
(New page: === Age === <br> === Materials === <br> === Preparation === <br> === Presentation === <br> === Control Of Error === <br> === Points Of Interest === <br> === Purpose...) |
|||
| Line 1: | Line 1: | ||
=== Age === | === Age === | ||
| − | <br> | + | 4 1/2.<br> |
=== Materials === | === Materials === | ||
| − | <br> | + | *Red fraction circles in green frames (ten circles: 1 is undivided and the others are divided into 2 -10 equal parts. |
| + | *Label with fractions written on them: 1, 1/2, 1/2, 1/3 | ||
| + | *Pencil and paper | ||
| + | *Skittles<br> | ||
=== Preparation === | === Preparation === | ||
| − | <br> | + | This is an individual presentation.<br> |
=== Presentation === | === Presentation === | ||
| − | <br> | + | #Have the child bring out the two trays. |
| + | #Write two fractions (with the same denominator): 2/6 + 3/6 = | ||
| + | #Show the child that we first take out 1/6 two times (2/6). | ||
| + | #Place these in front of the tray. | ||
| + | #Then take out 1/6 three times (3/6). | ||
| + | #Have the child count how many 1/6 there are. (5) | ||
| + | #Show the child how to write the answer as shown: 2/6 + 3/6 = 5/6 | ||
| + | #Read the whole equation with the child. | ||
| + | #Write another addition problem and have the child do it. | ||
| + | #After a few equations, point out to the child that "we can only add fractions with the same denominator". For example: 2/4 + 1/4 = 3/4 | ||
| + | |||
| + | |||
| + | |||
| + | <br> | ||
=== Control Of Error === | === Control Of Error === | ||
| − | <br> | + | The Directress.<br> |
=== Points Of Interest === | === Points Of Interest === | ||
| − | <br> | + | <br> |
=== Purpose === | === Purpose === | ||
| − | <br> | + | <br> |
=== Variation === | === Variation === | ||
| − | <br> | + | <br> |
=== Links === | === Links === | ||
| − | <br> | + | <br> |
=== Handouts/Attachments === | === Handouts/Attachments === | ||
| − | <br> | + | <br> |
[[Category:Mathematics]] | [[Category:Mathematics]] | ||
Revision as of 20:58, 1 June 2009
Contents
Age
4 1/2.
Materials
- Red fraction circles in green frames (ten circles: 1 is undivided and the others are divided into 2 -10 equal parts.
- Label with fractions written on them: 1, 1/2, 1/2, 1/3
- Pencil and paper
- Skittles
Preparation
This is an individual presentation.
Presentation
- Have the child bring out the two trays.
- Write two fractions (with the same denominator): 2/6 + 3/6 =
- Show the child that we first take out 1/6 two times (2/6).
- Place these in front of the tray.
- Then take out 1/6 three times (3/6).
- Have the child count how many 1/6 there are. (5)
- Show the child how to write the answer as shown: 2/6 + 3/6 = 5/6
- Read the whole equation with the child.
- Write another addition problem and have the child do it.
- After a few equations, point out to the child that "we can only add fractions with the same denominator". For example: 2/4 + 1/4 = 3/4
Control Of Error
The Directress.
Points Of Interest
Purpose
Variation
Links
Handouts/Attachments
