The ideas in this fraction lesson are taken from Math Mammoth Fractions 1 book. Only a few examples of each problem type are shown; you should make more problems of each kind for the student.
Part of a whole group
Free lesson plan from HomeschoolMath.net
Four of the ten parts are colored.
4
10
of the parts are colored.
Three of the nine apples are dark.
3
9
of the apples are dark.
Practice
1. What part of the things is different?
Express as a fraction.
One third of the twelve flowers are dark. We can see it is four flowers.
1
3
of 12 is 4.
2. Circle to make groups.
Make 3 groups.
1
3
of 12 apples is ___ apples.
2
3
of 12 apples is ___ apples.
3
3
of 12 apples is ___ apples.
Make 5 groups.
1
5
of __ fish is __ fish.
2
5
of __ fish is __ fish.
3
5
of __ fish is __ fish.
4
5
of __ fish is __ fish.
3. Draw sticks or balls for the problems. Make groups. Find
the given fraction of the balls. While you do the problems,
think how you can find 1/2 of a number, or 1/3 of a number, or 1/4 or 1/5 or 1/6
of a number, etc.
1
3
of 18 is __
1
5
of 10 is __
Fill in your findings in the table. Discuss with your teacher.
To find
1
2
of a number you need to _______________________________________
To find
1
3
of a number you need to _______________________________________
To find
1
4
of a number you need to _______________________________________
4. Draw balls in your notebook if you need to - or figure these out in
your head!
1
6
of 30 is __
2
6
of 30 is __
1
3
of 30 is __
2
3
of 30 is __
1
4
of 36 is __
2
4
of 36 is __
1
3
of 36 is __
2
3
of 36 is __
5. Continue the patterns!
1
7
of 21 is 3.
2
7
of 21 is __.
3
7
of 21 is __.
of 21 is __.
of 21 is __.
of 21 is __.
of 21 is __.
1
5
of 20 is 4.
2
5
of 20 is __.
3
5
of 20 is __.
of 20 is __.
of 20 is __.
1
3
of 21 is __.
1
3
of 24 is __.
1
3
of 27 is __.
of ___ is __.
of ___ is __.
of ___ is __.
of ___ is __.
6. Fill the missing parts. Use the top problem to help you solve
the bottom one.
1
4
of 12 is __.
3
4
of 12 is __.
1
5
of 10 is __.
3
5
of 10 is __.
1
6
of 24 is __.
5
6
of 24 is __.
7. Find where all the word quarter is used!
a.
The word quarter means 1/4. What is a quarter of
60 minutes (one hour)? Draw a clock face and shade one fourth of it to
illustrate this. What common expressions about time use the word 'quarter'
and what does it mean?
The ideas in this fraction lesson are taken from Math Mammoth Fractions 1 book. Only a few examples of each problem type are shown; you should make more problems of each kind for the student.
February 2010 newsletter
