Math Mammoth Addition 1 is a self-explanatory worktext, dealing with the concept of addition and addition facts within 0-10 (in few occasions numbers between 10 and 20 are used). The book is suitable for kindergarten and first grade.
The book starts out with very easy addition problems within 0-5,
using pictures. If the student does not yet
know the symbols + and = , you can introduce them first orally.
In other words, use blocks or rocks and
make addition problems where you use both kinds of wordings: "Three
blocks and four blocks makes
seven blocks. Three blocks PLUS four blocks EQUALS seven blocks."
Play like that until the child can use
the words PLUS and EQUALS in his/her own speech. This will make it
easier for him/her to use the
Soon the lessons start including missing addend problems. We
first use pictures, and gradually get to
the abstract 1 + __ = 5 with symbols only. Keep in mind that children
may confuse this problem with
1 + 5 = __. You can word these problems like this: "1 and how many
more makes 5?" You can MODEL this "how many more" addition by
drawing: First draw 1 ball. Tell the child that we need to have a total
of 5 balls. He is to draw
more until there are five balls. In the missing addition problem,
however many balls the child has to draw
is the number that goes on the empty line. So, first there is one ball,
then we need to add (draw) some
more to make 5. But how many more were drawn?
After that, the book contains many lessons called Sums with...
whose goal is to help the child memorize
My approach to memorization is many-fold: