For those who want a little more practice, here are some Skill Checks you can try. Each has QR codes that you can scan from a smart phone or ipad (the app is free; just search for QR scanner). The first scan will give you a video to watch to help review the concept. The second code can be scanned after you answer the questions to check your work. This is a great chance to see which concepts you need more help with. If you struggle with a concept, search below for a blog post to review.
We took a quiz over the first two transformations last week. I am posting the quiz with the answers. Please take the time to look over the quiz and the answers. This is a great way to study for your upcoming test over transformations. Just click on the document below to see the answers.
Several of you were asking for some extra practice. We have decided to push back the lesson plans for a day and allow a day to just practice what we have learned so far about translations and reflections. Here are some practice pages for you. There are two different activities. Give both a shot!
![]() Today we are introducing our lesson on translations. A translation is a type of transformation. Words to know: A transformation is the movement of all points of a figure. A translation is a "slide". It is a transformation in which each point is moved in the same direction and same distance. We begin the investigation by moving the vertices of a triangle (ABC) down 2 units and left 3 units. We label the new points as PRIME points (notated A', B', and C'). We then measure the lengths of the corresponding sides (AB would correspond with A'B') of the triangles. We also measure the angles (angle A would correspond with angle A'). We conclude that this must be a translation by definition since we moved all points the same number of units and in the same direction. After measure the corresponding sides and angles, we can conclude that in a translation, the angles and side lengths remain unchanged, therefore the original image and the translated image are congruent.
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April 2015
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