An Introduction to Cross Number Puzzles Across the Grades Created by: Lyn Channey, Kristy Garvin,...
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An Introduction to An Introduction to Cross Number Puzzles Cross Number Puzzles Across the Grades Across the Grades Created by: Created by: Lyn Channey, Kristy Garvin, Karen Lyn Channey, Kristy Garvin, Karen Kissel, Kissel, Barbara Wennerberg, and Barbara Wennerberg, and Amy Zell Amy Zell
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Transcript of An Introduction to Cross Number Puzzles Across the Grades Created by: Lyn Channey, Kristy Garvin,...
An Introduction to An Introduction to Cross Number Puzzles Cross Number Puzzles
Across the GradesAcross the Grades
Created by:Created by:Lyn Channey, Kristy Garvin, Karen Kissel, Lyn Channey, Kristy Garvin, Karen Kissel,
Barbara Wennerberg, and Barbara Wennerberg, and Amy ZellAmy Zell
What is this?What is this?
33 11 ??
44 22 ??
?? ?? ??
What could you do with this?What could you do with this?
33 11 ??
44 22 ??
?? ?? ??
When I point to you, click on the When I point to you, click on the next number to sort these shapes.next number to sort these shapes.
1
2
7
8
3
5
6
4
When I point to you, click on the When I point to you, click on the next number to sort these shapes.next number to sort these shapes.
1
2
7
8
3
5
6
4
When I point to you, click on the When I point to you, click on the next number to sort these shapes.next number to sort these shapes.
1
2
7
8
3
5
6
4
When I point to you, click on the When I point to you, click on the next number to sort these shapes.next number to sort these shapes.
1
2
7
8
3
5
6
4
When I point to you, click on the When I point to you, click on the next number to sort these shapes.next number to sort these shapes.
1
2
7
8
3
5
64
When I point to you, click on the When I point to you, click on the next number to sort these shapes.next number to sort these shapes.
1
2
7
8
3
5
64
When I point to you, click on the When I point to you, click on the next number to sort these shapes.next number to sort these shapes.
1
2
7
8
3
5
6
4
When I point to you, click on the When I point to you, click on the next number to sort these shapes.next number to sort these shapes.
1
2 7
8
3
5
6
4
When I point to you, click on the When I point to you, click on the next number to sort these shapes.next number to sort these shapes.
1
2
3
47
8
5
6
How many circles do I have?How many circles do I have?
How many circles do I have?How many circles do I have?
4
How many rectangles do I have?How many rectangles do I have?
4
How many rectangles do I have?How many rectangles do I have?
4
4
How many blue shapes do I have?How many blue shapes do I have?
4
4
How many blue shapes do I have?How many blue shapes do I have?
4
4
4
How many green shapes do I How many green shapes do I have?have?
4
4
4
How many green shapes do I How many green shapes do I have?have?
4
4
4 4
How many total shapes do I have?How many total shapes do I have?
4
4
4 4
How many total shapes do I have?How many total shapes do I have?
4
4
4 4 8
What number sentences could I make?What number sentences could I make?
4 purples + 4 greens = 8 shapes 4 circles + 4 rectangles = 8 shapes
4
4
4 4 8
This is a Kindergarten Cross This is a Kindergarten Cross Number PuzzleNumber Puzzle
In First Grade it might look like this:In First Grade it might look like this:
33 11 44
44 22 66
77 33 1010
Flip it in Second Grade to show Flip it in Second Grade to show subtraction:subtraction:
1010 33 77
66 22 44
44 11 33
Expand it to show two-digit Expand it to show two-digit addition.addition.
1010 55 1515
2020 22 2222
3030 77 3737
What number sentence does this What number sentence does this represent?represent?
1010 55 1515
2020 22 2222
3030 77 3737
15 + 22 = 371010 55 1515
2020 22 2222
3030 77 3737
Now let’s try it with regrouping.
1010 55 1515
2020 66 2626
3030 1111 4141
What number sentence does this represent?
1010 55 1515
2020 66 2626
3030 1111 4141
26 + 15 = 411010 55 1515
2020 66 2626
3030 1111 4141
Array Model of MultiplicationArray Model of Multiplication
4
2
What does this represent?What does this represent?
4
2
2 x 4 = 82 x 4 = 8
4
2
From here it moves to multi-digit From here it moves to multi-digit multiplication.multiplication.
1010 55
2020 200200 100100 300300
22 2020 1010 3030
220220 110110 330330
Array Model
1515
X 20X 20
1010 55
2020
22
Here is what the cross number Here is what the cross number puzzle would look like alone.puzzle would look like alone.
1010 55
2020 200200 100100 300300
22 2020 1010 3030
220220 110110 330330
What number sentence does this What number sentence does this represent?represent?
1010 55
2020 200200 100100 300300
22 2020 1010 3030
220220 110110 330330
15 x 22 = 33015 x 22 = 3301010 55
2020 200200 100100 300300
22 2020 1010 3030
220220 110110 330330
44
66
77 33 1010
In Conclusion…In Conclusion…
1010 55
2020 200200 100100 30030022 2020 1010 3030
220220 110110 330330
1010 55 1515
2020 66 2626
3030 1111 4141
33 11 44
44 22 66
77 33 1010
Any Any Questions?Questions?
Celebrate!Celebrate!You have just expanded your You have just expanded your
knowledge of Math!knowledge of Math!
