Blackline 2.20 For use in Unit Two, Session 16. Also for general use. Make 1 copy and place in Work Place basket 2D.
Work Place 2D Instructions
WORK PLACE
Round Ball Tens
This Work Place basket will need
H Work Place 2D Instructions (Blackline 2.20, 1 copy)
H 2D Round Ball Tens Record Sheet (Work Place Student
Book, pages 35 and 36)
H 3 2D Round Ball Tens Spinners
Work Place Student Book
NAME
Emma
DATE
20
0
10
30
2D Round Ball Tens Spinner
50
40
H base ten pieces, optional
9
60
H 6 measuring tapes
8
80
Instructions for Round Ball Tens
1. Record your name and the date at the top of a
record sheet. Choose a partner to work with and
get a pair of spinners to share. You’ll each fill out
your own record sheets.
2. The first player spins both spinners and decides which number to put in the tens place and
which number to put in the ones place. In the example on the next page, 4 and 6 could be used to
make 64 or 46.
If you rounded 46 to the nearest 10, it would be
50. You would record 46 in the basketball hoop
marked 50. If you chose to make 64, you would
round it to 60. Then you would record the number 64 in the basketball hoop marked 60.
Bridges in Mathematics
October 28
2D Round Ball Tens Record Sheet page 1 of 2
64
90
4
70
7
5
5
6
4
0
3
1
2
100
3. Continue taking turns spinning both spinners
and deciding how to arrange the two numbers.
To round the numbers, you can use a measuring
tape or number line, base ten pieces, or your own
mental math strategies.
4. The first player to get at least 1 number in each
basket wins. You might get more than 1 number
in some baskets before you can write at least 1
number in every basket.
© The Math Learning Center
Work Place Student Book
NAME
DATE
2D Round Ball Tens Record Sheet page 1 of 2
20
0
10
30
50
40
60
70
80
90
© The Math Learning Center
100
Bridges in Mathematics
35
Work Place Student Book
NAME
DATE
2D Round Ball Tens Record Sheet page 2 of 2
20
0
10
30
50
40
60
70
80
90
36
Bridges in Mathematics
100
© The Math Learning Center
2D Round Ball Tens Spinner
9
8
4
7
5
5
6
4
0
3
Bridges in Mathematics
1
2
© The Math Learning Center
2D Round Ball Tens Spinner
9
8
Bridges in Mathematics
4
7
5
5
6
4
0
3
1
2
© The Math Learning Center
Make 2 copies on cardstock. Cut off instructions. Cut apart on thin lines. Laminate 3 double spinners. Attach spinners.
(You’ll have 1 left over.)