Two Mini Lessons

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• Two Mini Lessons
• Direct Instruction Lattice Multiplication
• Guided Instruction Beach Ball math with word
  problems
• Three Lesson Plans
• Solving multiplication problems with lattice
  multiplication
• Multiplication Word Problems
• Multiplication Rap worksheets (work in groups of
  3)

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Direct Instruction Math July 31, 2007 Agenda

• Introduction to Lattice Multiplication
• MA Mathematics Curriculum Frameworks Grades
  3-4
• Number Sense and Operations
• Learning Standards 4.N.11
• Know multiplication facts through 12 x 12 and
  related division facts. Use these facts to solve
  related multiplication problem and compute
  related problems.
• Practice Problems

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Lattice Multiplication

• Create an array.
• Draw in diagonal lines (dotted like lattice)
• Put the first factor on top of the first row
  (above the top two boxes)
• Put the next factor to the right of the right
  hand column.
• Multiply each column by each row.
• Write the products in each box.
• The tens digits go above the dotted line, the
  ones digits go below it.
• Add the numbers within the lattice to find the
  sum.
• Each diagonal line represents the place values.

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Lattice Multiplication
1
1
0
0
1
1
1
0
0
0
1
1
Thousands
1
1
Hundreds
2
1
Tens
Ones
Write the math problem out here 11 x 11
121
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Lattice Multiplication
Thousands
Hundreds
Tens
Ones
Write the math problem out here ___ x ___ ___
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Using Lattice Multiplication, solve the following
problems.

1. 10 x 10
2. 8 x 4
3. 6 x 3
4. 2 x 12
5. 11 x 5
6. 11 x 12
7. 9 x 9
8. 10 x 11
9. 7 x 8
10. 12 x 12
11. 13 x 6
12. 18 x 10
13. 10 x 12
14. 19 x 9
15. 15 x 14
16. 20 x 20
17. 16 x 20
18. 13 x 10

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Guided Instruction Math August 2, 2007 Agenda

• Beach Ball Mathematics
• MA Mathematics Curriculum Frameworks Grades
  3-4
• Number Sense and Operations
• Learning Standards 4.N.11
• Know multiplication facts through 12 x 12 and
  related division facts. Use these facts to solve
  related multiplication problem and compute
  related problems.
• Word problem explanation/examples
• Students will create their own word problem with
  a picture for our bulletin board.

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Launch

• Use the beach ball to get students thinking about
  their multiplication facts.
• Split the class in half and have the students
  toss the ball to and from their team to warm up
  and remember their facts.
• Discuss Undersea Adventure Bulletin Board
• Do three examples then have the students work in
  pairs to do some also
• Put Multiplication word problems on the board
  with pictures of the sea creatures
• They can draw pictures to go on the bulletin
  board.

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Solving Word Problems

1. Read the problem carefully.
2. Identify the information you need to solve the
   problem.
3. Draw a picture or diagram if necessary.
4. Use keywords to decide which operations to use.
5. Show your work.
6. Check your answer.

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Word Problems
12 Students from the Salisbury Elementary School
went to the beach on Saturday.  Each student went
on 10 rides.  What was the total number of rides
that the students went on?   The bus ride to York
Beach in Maine took 30 minutes.  If the bus went
to the beach and back 2 days in a row, how many
minutes were the students on the bus?   On
Tuesday, Jason found 12 crabs at Hampton Beach. 
He found the same amount of crabs on Thursday and
Friday.  How many crabs did he find all together? 
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A Day at the Beach Multiplication Word Problems
If one starfish has 5 points on it, how many
points would 11 starfish have? _________
Jasper the jellyfish has 5 legs. If 9 more
jellyfish joined him, how many legs would there
be in all? ________
This crab has 2 claws and 6 legs. How many claws
would 8 crabs have? ________ How many legs?
_________
Oliver the Octopus has 8 legs. How many legs
would 7 octopus have? ________
This lobster has 2 claws and 8 legs. How many
claws would 9 lobsters have? ________ How many
legs? _________
If a beach ball has 5 colors on it, how many
colors would12 balls have? ___________
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Mnemonic Songs Use the memory power of music to
help learn basic mathematical processes. Here is
an example of a Multiplication Rap that I created
to help students remember their multiplication
tables. Its time to learn our multiplication
facts If you follow along and step in my
tracks Youll understand how to multiply If you
concentrate and really try Now you can do it
wrong or you can do it right If you do it wrong,
youll be here all night
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Multiplication Tables Rap 1 x 1 1 Lets go to
the beach and have some fun 1 x 2 2 It sounds
like something fun to do 1 x 3 3 Theres no
other place Id rather be 1 x 4 4 Lots of
creatures on the ocean floor 1 x 5 5 Walk in
the water or take a dive 1 x 6 6 Can you do any
diving tricks? 1 x 7 7 The beach is like a
piece of heaven 1 x 8 8 Fried dough from the
beach is always great 1 x 9 9 If you use
sunscreen youll be just fine 1 x 10 10 I hope
we get to go again 1 x 11 11 Lets build a sand
castle up to heaven 1 x 12 12 You can swim all
by yourself!
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Connections to Curriculum Frameworks

• 4.N.9 - Select, use, and explain the commutative,
  associative, and identity properties of
  operations on whole numbers in problem situations
  
• 4.N.10 - Select and use appropriate operations
  (addition, subtraction, multiplication, and
  division) to solve problems, including those
  involving money
• 4.N.11 - Know multiplication facts through 12 x
  12 and related division facts. Use these facts to
  solve related multiplication problems and compute
  related problems
• 4.N.12 - Add and subtract (up to five-digit
  numbers) and multiply (up to three digits by two
  digits) accurately and efficiently.
• 4.N.14 - Demonstrate in the classroom an
  understanding of and the ability to use the
  conventional algorithms for addition and
  subtraction (up to five-digit numbers), and
  multiplication (up to three digits by two
  digits).

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Assessments

• Oral Performance Class participation,
  explanation, etc.
• Group Project Making word problems
• Think Aloud Explain your thinking process.
• Homework Assigned worksheets, website
  exploration, etc.

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Extensions

• Go online
• http//www.coolmath4kids.com/times-tables/times-ta
  bles-lesson-lattice-multiplication-1.html
• http//nlvm.usu.edu/en/nav/vlibrary.html
• http//www.coolmath4kids.com/
• Excel spreadsheet to multiply
• Flash cards online http//www.mathplayground.com/f
  lashcards.html
• Play domino multiplication
• Multiplication Bingo