mcraes

Learning Target

Creating a Tesselation

Examples

This is an example of a semi-regular tessellation. A semi-regular tessellation is a tessellation that contains more than one regular polygon.

This is an example of a regular tessellation:

If you notice this tessellation is made up of hexagons. Tessellations of only one type of polygon are called regular tessellations.

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rossa

baizea

totally tessellated

Learning Target

Add and subtract fractions with common denominators and

justify your solutions using manipulatives and mathmatical reasoning.

Lesson

1.If the two fractions have the same denominator look at the numerator.

2.Add or subtract the numerators.

3.The sum or the difference of the numerators becomes the numerator for the new fraction. The denominator stays the same.

4. Simplify the fraction if needed.

In class on Friday, we got a piece of graph paper. We drew a rectangle the size of the number of squares equal to the denominator. Then we shaded in the number of squares in the numerator. We counted the number of shaded squares in both retangles. We drew a new rectangle of the same size of the old one and shaded in the shaded in the number of shaded squares in both.

Example

3/4 + 2/4 = 5/4 or 1 and 1/4

3/4 - 2/4 = 1/4

To see how much you've learned, check out this quiz.

Learning Target

Estamate sums and differences using decimals

Example

53.66 54 + 26 =80 22.32-11.11=11.21 22-11=11

+26.11
79.77

Lesson

Rounding decimals.

If the decimal after the point is 4 or lower you round down. If the decimal after the point is 5 or higher you round up. Add or subtract the rounded decimals.

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Scribe post #2

Learning Target

Use strategies to develop formulas for finding the circumference of circles.

Example

15.3*pi= 48.0663676

Lesson

On Friday, my class did a projact on how to find the circumference of a circle. What we did was we took a piece of string and measuring tape and measured the length around the circle, or circumference. Then we learned that the distance from side to side of the circle is called the diameter. If you multiply the circumference by the diameter you get the ratio.

http://www.aaamath.com/geo612-circumference-circle.html#pgtp