Addition and Subtraction
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Subtraction involves three different types of situations. The first, and the easiest for children to learn, is separation, or taking away, in which one quantity is taken away from another to find out what is left. The second is comparison, in which two quantities are compared to find the difference. The third is part-whole, in which the quantity in the whole set and one part are known, and may be used to find out how many are in the unknown part. Early instruction should provide many opportunities for children to explore the three types of subtraction situations. Children learn the meaning of subtraction through concrete experiences and then learn to record subtraction in horizontal and vertical forms.
These addition songs and subtraction songs are available from a variety of albums. Use them for teaching skip counting, place value, word problems, buying and selling. Songs for Teaching Addition (Including Skip-Counting Songs) 4 Plus Song – Alan Stern 7 Plus Song – Alan Stern The 9 Rule – Jeff Schroeder 10 Silly Monkeys
Students place markers on the numbers 2-12. Students toss two 6-sided dice, find the sum and remove a marker from that number, if there is still one. The first player to remove all markers wins the game. This game can be used as addition practice or as an introduction to the probability of the different outcomes of rolling two dice.
Posted on December 10, 2010 . Filed under: During the Guided Math Lesson , Elementary math , Graphic Organizers , Guided math , Manipulatives | Tags: five frame , Guided math , manipulatives , virtual manipulatives | i 2 Votes Five frames are a great tool for teaching complements of 5!
Posted on December 15, 2010 . Filed under: During the Guided Math Lesson , Elementary math , Graphic Organizers , Guided math , Guided math with Dominos , Math is a Language | Tags: beginning addition , domino math , dot cards , Elementary math , fact sort , Guided math , math talk , mathematical thinking , subitizing | i 1 Votes