Math Lessons and Teaching Tips

All grades

Elementary

Middle

High School

• Place Value Ideas
  
  
  
  • Teaching tens and ones
    
  • Tens and ones practice
    
  • Counting in groups of ten
    
  • Skip-counting (0-100)
    
  • Comparing (0-100)
    
  • Cents and dimes
    
  • Place Value - hundreds
    
  • Comparing (0-1000)
    
  • Place value - thousands
    
  • Comparing thousands
    
  • Rounding
    
  • Place value - big numbers

• Add/Subtract lessons
  
  
  
  • Missing addend concept (0-10)
    
  • Addition facts with 6
    
  • Addition & subtraction connection
    

    Within 0-100

    
    
  • Add/subtract whole tens (0-100)
    
  • Easy principle of adding ones
    
  • Fact families for basic facts
    
  • Sum over next whole ten
    
  • Add 2-digit numbers mentally
    
  • Subtract 2-digit numbers mentally
    
  • Carrying to tens
    
  • Borrowing from tens
    

    Within 0-1000

    
    
  • Rounding to nearest ten
    
  • Carry two times
    
  • Borrow from hundreds
    
  • Borrow two times
    
  • Borrow over zero tens

• Multiplication & Division lessons
  
  Multiplication
  
  
  • Multiplication concept as repeated addition
    
  • Multiplication on number line
    
  • Commutative
    
  • Multiply by zero
    
  • Word problems
    
  • Order of operations
    
  • Oral drilling guide
    
  • Drilling tables of 2, 3, 5, or 10
    
  • Drilling tables of 4, 11, 9
    
  • Multiplying by whole tens
    
    
  • Multiplying by 100
    
    
  • Distributive property
    
  • Multiplying in columns the easy way
    
    
  • Multiplying in columns
    
    
  • Estimation when multiplying
    
    

    Division

    
    
  • Division as making groups
    
  • Division/multiplication connection
    
  • Division is repeated subtraction
    
  • Zero and one in division
    
  • Not exact division/remainder
    
  • Divisibility
    
  • Long division as repeated subtraction
    
  • Long division and why it works
    
  • Remainder & long division
    
  • Long division 0-10,000
    
  • Two-digit divisor
    
  • Divisibility within 0-1000
    
  • Divisibility rules
    
  • Factoring
    
  • Sieve of Eratosthenes

• Fraction Lessons
  
  
  
  • Understanding fractions
    
  • Part of whole group
    
  • Mixed numbers
    
  • Mixed number to fraction
    
  • Fraction to mixed number
    
  • Adding like fractions
    
  • Equivalent fractions
    
  • Adding unlike fractions
    
  • Adding mixed numbers
    
  • Subtracting mixed numbers
    
  • Subtracting mixed numbers 2
    
  • Part of whole group 2
    
  • Measuring in inches
    
  • Comparing fractions
    
  • Simplifying fractions
    
  • Whole number times a fraction
    
  • Fraction times a fraction
    
  • Multiplication as an area
    
  • Simplify before multiplying
    
  • Divide fractions by whole number
    
  • Dividing fractions by fractions
    
  • Dividing mixed numbers

• Geometry Lessons
  
  
  
  • Lines, rays, and angles
    
  • Measuring angles
    
  • Angles with the same vertex
    
  • Parallel & perpendicular
    
  • Triangles
    
  • Altitude of a triangle
    
  • Angles in a triangle
    
  • Equilateral & isosceles triangles
    
  • Circles
    
  • Compass ruler constructions
    
  • Symmetry
    
  • Polygons
    
  • Area of rectangles
    
  • Area of right triangles
    
  • Area of parallelograms
    
  • Area of triangles

• Decimals Lessons
  
  
  
  • Tenths
    
  • Tenths and place value
    
  • Add decimals with tenths
    
  • Multiply decimals with tenths
    
    
  • Hundredths
    
  • Hundredths as a place value
    
  • Add decimals with hundredths
    
  • Add decimals with hundredths 2
    
  • Multiply with hundredths
    Money problems.
    
  • Comparing