Pixels, and Similarity

Today in class we learned about pixels. In old video games things are more square and unrealistic. The more pixels you have the more expensive cameras are. Things are rounder the more pixels they have. We also learned that when the image is distorted it isn't similar to the basic image.

Stretching & Shrinking problem 2.1 Introducing the Wumps

Stretching & Shrinking 2.1 Rr

View more presentations from Kathy Favazza.

area, perimeter, and corresponding

Today while we were correcting homework we talked about how hight and base meet at a 90 degree angle. When finding an area always do ase times hight. If it's a triangle then you would do the base times the hight times one half. In order to compare the parts of these triangles we use the terms corresponding sides. and corresponding angles. The rectangles angles are all 90 degrees. Corresponding can be sides or angles. It is also the same position on both sides. we learned today that corresponding means to be similar in many ways.

Scaling Up & Down

Our notes from Stretching & Shrinking Problem 1.3.

Stretching & Shrinking Problem 1.3 Rr

View more documents from Kathy Favazza.

Similarities In Real Life Compared to Pictures

Today in class we learned the similarities between an image and what actually happened.

In real life, things are balanced when it comes to size. In an image, everything is out of proportion. When we used computers in class today, we used a document called "rubber band", which was used to show the different sizes of proportion. There was a line with three points. The first point could be moved around and would decide the size of the image, the point in the middle was used to draw around the already existing figure, and the last dot on the right would draw the image as you traced over the figure. The image of something that happened may look like the situation, but really it's all out of proportion.

Stretching & Shrinking Problem 1.2

When enlarging a figure, what changes and what stays the same? See our notes from today's class.

Stretching & Shrinking 1.2 Rr

View more presentations from Kathy Favazza.

Multiplying and Dividing Fractions, GCM, and LCM

Today in math we reviewed multiplying and dividing fractions. To multiply fractions; you reduce them and then multiply the numerators and then the denominators. Then you simplify. If you want to multiply mixed numbers you have to change them to mixed numbers. To divide fractions, you multiply the first fraction by the second fraction's recipricle. Also, we reviewed Gcf and LCM. To find two numbers' GCF you find the prime factorization of each number and the largest number they both have in common is the GCF. To find the LCM you put the factors of each number in a venn diagram (the numbers that they have in common go in the center) and then multiply all of the numbers together.