try something Let’s different. What happens if we take the original square and flip the top and bottom rows? Did we see this square No. before? Is this new square a Yes! magic square? Good. This new square was Can anyone think of a A mirror! made by a reflection. [Writes real-life example of a The top of a swimming pool! on board.] The middle row in reflection… perhaps move, but the other rows your bathroom? didn’t were reflected through the middle row. Excellent. Rotations and [Students write reflection and reflections are two examples of transformation on vocabulary transformations, or ways that sheet.] a figure can be changed to get a new figure. [Writes on board.] Please write those words down. Can anyone think of Reflect the first and third another way to make a columns! new magic square? Good. Start with the original square. What do you get if we reflect through the middle column? Have we seen this square No. before? Yes! Is it also a magic square? Now take this square let’s and reflect through the middle row. What do we get?
Good. This new square was made by a reflection. [Writes on board.] The middle row didn’t move, but the other rows were reflected through the middle row. Excellent. Rotations and reflections are two examples of transformations, or ways that a figure can be changed to get a new figure. [Writes on board.] Please write those words down. Let’s try something different. What happens if we take the original square and flip the top and bottom rows? Did we see this square before? Is this new square a magic square? Can anyone think of a real-life example of a reflection… perhaps in your bathroom? Can anyone think of another way to make a new magic square? Good. Start with the original square. What do you get if we reflect through the middle column? Have we seen this square before? Is it also a magic square? Now let’s take this square and reflect through the middle row. What do we get? No. Yes! A mirror! The top of a swimming pool! [Students write reflection and transformation on vocabulary sheet.] Reflect the first and third columns! No. Yes!