Page 39 - NUMINO TG_5A
P. 39
Activity 2 Common Factors
jOb ective Learn about common factors.
1. Textbook Instructions Activity 2 Common Factors
Explain to students what common factors are Learn about common factors.
and then have them find the common factors.
Numbers that are factors of two or more numbers are called common
Have students divide 4 cookies and factors.
8 pieces of candy equally to place on the
plates and find a number that can divide There are 4 cookies and 8 pieces of candy.
Ann wants to put an equal number of
both 4 and 8. Refer to . cookies and candies on each plate.
How many plates does she need?
The pictures below ( ) show that
How many pieces of candy and cookies can she put on the plate if she has
4 cookies and 8 pieces of candy cannot be 1 plate? 4 cookies and 8 pieces of candy
divided equally onto 3 plates, but can be How many pieces of candy and cookies can she put on each plate if she has
2 plates? 2 cookies and 4 pieces of candy
divided equally onto 1, 2, and 4 plates.
Can you put an equal number of cookies and candies on each plate if she
Students can see that 1, 2, and 4 are has 3 plates? No
numbers that can equally divide both 4 and How many pieces of candy and cookies can she put on each plate if she has
4 plates? 1 cookie and 2 pieces of candy
8 (cookies and pieces of candy).
How many plates does she need in order to put an equal number of cookies
Have students use what they have learned and candies on each plate? She needs 1, 2, or 4 plates to put an equal number of cookies
to find the factors of 4 and 8 and then find
the common factors. and candies on each plate.
Have students find factors for 4 and 8. Solve the problem above using common factors.
Have them mark the numbers they see in
both sets of factors. Find factors. Factors of 8: 1, 2, 4, 8
Have students understand that the Factors of 4: 1, 2, 4
numbers they marked are common
factors. Find common factors.
Have them understand that if they need Common factors: 1, 2, 4
to use the common factors to divide
4 cookies and You need 1 , 2 , or 4 plates to equally divide 4 cookies and 8 pieces of
8 pieces of candy equally, they will need candy.
1, 2, and 4 plates.
14
2. Build Understanding
Dividing Cookies and Pieces of Candy
One plate: Two plates: Four plates:
You can place 1 cookie and
You can place all 4 cookies and You can place 2 cookies and 2 pieces of candy on each plate
if you have 4 plates.
8 pieces of candy on 1 plate. 4 pieces of candy on each plate
if you have 2 plates.
022 NUMINO Teacher s Guide
jOb ective Learn about common factors.
1. Textbook Instructions Activity 2 Common Factors
Explain to students what common factors are Learn about common factors.
and then have them find the common factors.
Numbers that are factors of two or more numbers are called common
Have students divide 4 cookies and factors.
8 pieces of candy equally to place on the
plates and find a number that can divide There are 4 cookies and 8 pieces of candy.
Ann wants to put an equal number of
both 4 and 8. Refer to . cookies and candies on each plate.
How many plates does she need?
The pictures below ( ) show that
How many pieces of candy and cookies can she put on the plate if she has
4 cookies and 8 pieces of candy cannot be 1 plate? 4 cookies and 8 pieces of candy
divided equally onto 3 plates, but can be How many pieces of candy and cookies can she put on each plate if she has
2 plates? 2 cookies and 4 pieces of candy
divided equally onto 1, 2, and 4 plates.
Can you put an equal number of cookies and candies on each plate if she
Students can see that 1, 2, and 4 are has 3 plates? No
numbers that can equally divide both 4 and How many pieces of candy and cookies can she put on each plate if she has
4 plates? 1 cookie and 2 pieces of candy
8 (cookies and pieces of candy).
How many plates does she need in order to put an equal number of cookies
Have students use what they have learned and candies on each plate? She needs 1, 2, or 4 plates to put an equal number of cookies
to find the factors of 4 and 8 and then find
the common factors. and candies on each plate.
Have students find factors for 4 and 8. Solve the problem above using common factors.
Have them mark the numbers they see in
both sets of factors. Find factors. Factors of 8: 1, 2, 4, 8
Have students understand that the Factors of 4: 1, 2, 4
numbers they marked are common
factors. Find common factors.
Have them understand that if they need Common factors: 1, 2, 4
to use the common factors to divide
4 cookies and You need 1 , 2 , or 4 plates to equally divide 4 cookies and 8 pieces of
8 pieces of candy equally, they will need candy.
1, 2, and 4 plates.
14
2. Build Understanding
Dividing Cookies and Pieces of Candy
One plate: Two plates: Four plates:
You can place 1 cookie and
You can place all 4 cookies and You can place 2 cookies and 2 pieces of candy on each plate
if you have 4 plates.
8 pieces of candy on 1 plate. 4 pieces of candy on each plate
if you have 2 plates.
022 NUMINO Teacher s Guide
