In Math I have a roll to 20 game the kids love playing. It allows them to practice 1 to 1 counting and it is a game so they don't even realize they are doing math. Each player rolls the dice and adds the correct number of candy to the board. I use the candy erasers from Target but you can also use candy corn or pom poms or anything.
You can find it here in my Teacher's Pay Teacher store. It comes with Candy ten frames and a roll to 20, 50 or 100 game. It also come in color and black and white.
Another math center I love is my One More and One Less Frankenstein Center. I just love these little Frankensteins. Students must write the numbers that are one more and one less of the number given. This math center covers numbers 1-20. A number line is provided for additional support. 18 cards are provided. Simply print, laminate and cut out the cards. Place in a bin with an expo number and optional number line. It can be used as morning work or as a math center.
I also have a Frankenstein Missing Letter Center if you are looking for an activity to practice ABC order.
What do you do in your classroom for Halloween?