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MATH
21
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Page 2: Breck ramsey educ 2200

Have you ever had a bad teacher?

A horrible math teacher could be the cause of the negative attitude a student

has toward the subject.

It is not always the student’s fault for his/her dislike toward a subject, but all students still must try their best even

when they don’t find the subject enjoyable…

Page 3: Breck ramsey educ 2200

The students aren’t the only ones in the classroom that should have a positive

attitude.

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It really can be fun!!

Step 1: you need to have a positive attitude.

Page 6: Breck ramsey educ 2200

Step 2: you should always do your best to pay attention.

Page 8: Breck ramsey educ 2200

Step 4: complete

homework and study for

tests!

And do not be afraid to seek

help from a tutor, friend, parent, or

even another teacher.

Page 9: Breck ramsey educ 2200

Mathematics is not just finding an answer using a calculator.

Page 10: Breck ramsey educ 2200

That involve math…

Everyday situations……

Page 11: Breck ramsey educ 2200

In today’s class, we learn how to find the perimeter and the area.

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Perimeter

• Different shapes require different formulas to find the perimeter.

• Perimeter is the outline of a shape or the path that surrounds the area.

Page 14: Breck ramsey educ 2200

The lines painted on the outside of a basketball court (boundary lines) make up the perimeter of

the court!

Page 15: Breck ramsey educ 2200

The walls that enclose your bedroom make up the perimeter of your bedroom!

Now, think of your carpet or flooring in your bedroom….that is the area of your room!

Page 16: Breck ramsey educ 2200

Perimeter

To find the perimeter of a shape:1. add up all the sides2. give the number the correct units

Let’s find the perimeter of the given shape…

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Perimeter continued

Add up all the sides:

1+5+4+2+7=19

Units were not given.

Page 18: Breck ramsey educ 2200

Find the perimeter of this rectangle.

Equation:2L + 2W

2(12 cm) + 2(9 cm)=

24 cm + 18 cm= 42 cm You could also go about the

problem this way:L+L+W+W

12 cm+12 cm+9 cm+9 cm=42 cm

Page 19: Breck ramsey educ 2200

See?! We use math everyday!Another Example:

What if you needed to find the area of a room so you could remodel?

You would have to use your math skills!!

Area=Length x Width

Page 20: Breck ramsey educ 2200

Let’s find the area…

Area=length x width

Length= 100 ft

Width= 100 ft

Area= 100 ft x 100 ft

Area= 10,000 ft2

Page 21: Breck ramsey educ 2200

Math is used in so many activities.

Most likely, we can always pertain math class to something in the real world. It will seem more relevant and hopefully

easier to understand!