Help young students understand the difference between small, medium and large with a bulletin board using ball shapes they are familiar with. Post felt visual representations of balls onto a felt-covered board to explain the concept of size. Use a small white circle for a pingpong ball, a medium sized yellowish-green ball for a tennis ball, a white ball with red markings for a baseball and an orange ball for a basketball. Although pingpong balls, tennis balls and baseballs are all small when compared to the basketball, they each have a distinct size. Allow children to arrange the shapes in size from largest to smallest and then smallest to largest to reinforce the concept.
Help younger students better understand patterns with a baseball theme. Post a pattern on the board, such as baseball-baseball-bat-baseball-baseball-bat. Ask students to tell you what shape comes next in the pattern. Vary each line on your bulletin board, mixing up the pattern sequence and objects on the board. Use visuals such as baseball players, mitts, helmets or even baseball players on different teams wearing different colors. Progress the difficulty of each line, using more than two items in the sequence.
Help students better understand the concept of counting by 10s by using a bulletin board that looks like a pitcher's mound surrounded by buckets full of baseballs. Explain that each bucket contains 10 baseballs, and is one group of 10. For example, the number 10, which starts with the number "1," is one group of 10; the number 20, which starts with the number "2" is two groups of 10.
Chart the progress of your class in their silent reading by creating a baseball-themed bulletin board. Decorate the bulletin board to look like a baseball field, and create a baseball for each child in your class. As the students read more and more, move their baseball across the board farther and farther away from the baseball player at bat.