Geometry
A circle!
There were 5 penguins on the ice. 7 more joined them. How many are there now?
7 + 5 = 12
There are 12 penguins all together.
What is 10 more than 20?
30
Draw a circle and divide it into 2 equal parts.
Show whiteboard
What is a shape that has three sides and three corners?
A triangle!
There are 12 penguins in a huddle. Some more penguins are coming to join them, and then there will be 19 penguins in the huddle. How many penguins are going to join the huddle?
12 + ? = 19
7 penguins will join the huddle.
What is 10 less than 50?
40
Draw a square and divide it into 4 equal parts. Shade in 2/4.
Show whiteboard.
Which shape has four sides and four corners that are all the same length?
A square!
There are 24 penguins in a huddle. Can all of them have a partner? If they can, how many pairs will there be?
Yes and there will be 12 pairs.
What is 10 more than 39?
49
Draw a square and divide it into 3 equal parts. Shade in 1/3.
Show whiteboard
Which shape has four sides, four corners, and only two sides that are parallel?
A trapezoid!
There are 14 penguins on the ice, and 22 penguins in the water. How many more penguins are in the water than on the ice?
14 + ? = 22
22 - 14 = 8
There are 8 more penguins in the water than on the ice.
What is 10 less than 72?
62
Draw a circle and divide it into 3 equal parts.
Show whiteboard.
Which triangle has 3 sides that are all different lengths?
Scalene!
Some penguins were playing on the ice. 8 of them jumped into the water. A few seconds later, 5 of them jumped back onto the ice. Now there are 12 penguins on the ice. How many penguins were on the ice to start with?
? - 8 + 5 = 12
There were 15 penguins on the ice to start with.
What is 10 more AND 10 less than 105?
10 more: 115
10 less: 95
There are 24 students in the class. Each student gets 1 slice of pizza and each pizza is divided into 4 equal parts. How many pizzas would we need to order so each student gets 1 slice?
We would need to order 6 pizzas.