Math Files

Common Core Math HELP for Module 1
Mathematical Concept Online Help Common Core Standards
Word Problems using a Bar Model Tape Diagram) and the RDWW strategy we use in class:
R ead the word problem & extract (underline) the information needed to solve the problem
Draw picture to represent the problem
Write a number sentence horizontally to represent your drawing
Write an explanation of your answer to check for reasonablenessThis strategy is used throughout the
Common Core curriculum to solve word problemsLessons 1&2: Each place on a Place Value Chart is 10 times larger than the place to the
right4.NBT.1
Lessons 1&2: Each place on a Place Value Chart is 10 times smaller than the place to theleft4.NBT.1
Lesson 3: Write numbers in word form & standard form with the help of commas
4.NBT.2
Lesson 4: Using place value to write numbers in expanded form
4.NBT.2
Lesson 5: Using <,>,= symbols and place value to compare digits
4.NBT.2
Lesson 6: Finding 1, 10,or 100 thousand more or less than a given digit
4.NBT.2
Lesson 7: Use a number line model to round
4.NBT.3
Lesson 8&9: Using a number line to round to a specific place. Remember a number line can be drawn horizontally or vertically
4.NBT.3
Lesson 10: Rounding with real world problems
4.NBT.3
Lesson11: Using place value to understand the addition algorithm
4.NBT.4, 4.NBT1, 4.NBT.2, 4.OA.3
Lesson 12: Using rounding to check for reasonableness of your sum
4.OA.3
Lesson 13: Using place value to understand the subtraction algorithm
4.NBT.4, 4.NBT1, 4.NBT.2, 4.OA.3
Lesson 14& 15:Using the bar diagram to subtract
4.OA.3
Lesson 16: Solve two step real world word problems with bar diagram (aka tape diagram)
4.OA.3
Lesson 17: Using a bar model to solve a comparison word problem
Using a tape diagram (aka bar model) to solve a comparative word problem
4.OA.3
Lesson 18: Using rounding to check for reasonableness of addition word problem
Using rounding to check addition
4.OA.3
Lesson 18: Using rounding to check for reasonableness of subtraction word problem
4.OA.3
Lesson 19: Solve addition word problems using a variable
4.OA.3
Lesson 19: Solve subtraction word problems using a variable
Using variables in subtraction 4.OA.3