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Katy Independent School District

Keiko Davidson Elementary

​​​​​​​​​​​​​​​​​​​​​Math Instructional Videos

Kindergarten

​​Helping Your Kindergartner
Build Number Combinations

​Mrs. Lorenzo shares strat​​egies such as using a Reke​nrek (​math rack) and a Tens Frame to help your child build concrete number combinations.  Then your child can turn the combinations into addition number sentences.

Generating Number
Combinations

​Mrs. Nochlin shares the "Bears in a Cave" activity we use with our kinder students to practice generating number combinations and finding the missing addend in a number sentence.​
Subitizing


In this video Mrs. Zanghi and Mrs. Olson explain what "subitizing" is and how you can work with your child at home on identifying a dot pattern quickly instead of counting one by one.​
 
 

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First Grade

C​​r​eating an Open Number Line to Solve Addition and Subtraction Problems

​In this video, Mrs. Tang sh​​ares how students can draw an open n​umber line to model and solve addition and subtraction problems.  Students can make forward jumps when adding and backward jumps when subtracting using the number line.​
Addition Using a 
Double Ten-Frame

Help your child concretely see how making a ten can help them solve addition problems with ease.  Ms. Styles demonstrates using a double tens-frame to find the sum of 8 and 5.  This strategy supports mental math development.​
Decomposing Numbers 
in Multiple Ways

Mrs. Trevino explains how to break apart (decompose) numbers by adding the value of each digit in the number.  She shares the importance of decomposing in multiple ways to support place value understanding and the realization that numbers are flexible.​
 
 
 
​Addition Problem
Solving Strategies​

Mrs. Jousan models solving a first grade word problem using multiple strategies including strip diagrams, ten frames, and a number line.​
Subtraction Problem Solving

Mrs. Jousan models solving a subtraction word problem using a strip diagram to show how we can find a missing part if we know one part and the whole.  She also relates addition to subtraction when using a model to solve.​
Subtraction Problem Solving Strategies

Davidson Elementary 1st grade teachers Mrs. Mitric and Mrs. Lutz demonstrate strategies students can use to model subtraction problem solving including: drawing a picture, using a ten frame, using an open number line and using a number bond to help them solve a story problem. 
 
 
 


 

Secon​d Grade

​​​​Adding and Subtraction 
on an Open Number Line

​Mrs. Cowan and​ Mrs. Satterwhite explain how students can add and subtract on an open number line.​​
Multiple Ways of 
Representing a Number 

​In this video Mrs. Hernandez explains how students represent numbers in multiple ways including standard form, word form, expanded form, decomposing, and pictorial representation.​
Identifying Patterns 
on a Number Line

​Mrs. Cowan and Mrs. Satterwhite explain how students can find the pattern or rule of what a number line is counting by in order to find a missing number.​​
 
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​​Finding a Missing Point 
on a Number Line

Mrs. Satterwhite and Mrs. Cowan share a simple strategy on using "neighboring numbers" on a number line to identify the pattern.  Students can then apply the pattern to find a missing point on the number line.​​
Problem Solving 
Using Bar Models

​In this video Mrs. Hernandez explains the model method problem solving approach we use at Davidson Elementary that includes drawing a bar model to solve the problem.​​
Addition Problem Solving 
Using Model Math

In this video, Mrs. Jousan models the step by step problem solving approach based on the Singapore Model Math involving addition.  This is aligned to the Second Grade TEKs.
 
 
 
Subtraction Problem Solving
Using Model Math

​In this video, Mrs. Jousan models the step by step problem solving approach based on the Singapore Model Math involving addition.  This is aligned to the Second Grade TEKs.​​​​

Identifying Patterns on a Number Line ​

Mrs. Cowan and Mrs. Satterwhite explain how students can add and subtract on an open number line.

Adding and Subtraction on an Open Number Line ​

Mrs. Cowan and Mrs. Satterwhite explain how students can add and subtract on an open number line.

 

 


 
​​​Decomposing Numbers in Multiple Ways 

Mrs. Garcia and Mrs. Trivino share ways that students can decompose and rename numbers in different ways to support the understanding that numbers are flexible.
Subtracting Across Zeroes 

Mrs. Cowan and Mrs. Garcia demonstrate how we use algorithms to teach students to subtract across zeroes.​
Measuring With a Ruler Not Starting at Zero (Broken Ruler)

Mrs. Cowan models 3 strategies for finding the length of an object when you have a broken ruler or the ruler does not start at zero.
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FASTT Math Help

Screen Cast-O-Matic describing  what should be done if you receive an  error message when trying to use Fastt Math on your iPad.
The district now has a parent technology help form for when students have trouble logging in to district programs at home.  Parents access through the link below.
 
https://katyisd.instructure.com/courses/82971  
​​
16-17 FASTT Math Logo.jpg


 

Third Grade

​​Addition Problem Solving 
Using Model Math

​Mrs. Jousan uses the Singapore Model Math Approach to Problem Solving to model solving a grade 3 addition problem situation.​​
Multiple Step Problem Solving 
Using Singapore Model Math

Mrs. Jousan takes 3rd graders through the Singapore Model Method Approach to Problem Solving involving multiple steps to find the answer.​​
Number Talks

Mrs. Barnes facilitates a number talk with her third grade students to promote mental math and various strategies of how students think through a math problem to solve.  Students identify misconceptions and errors made to find efficient ways to solve math mentally.​
 
 
 
​Using the Area Model to Multiply a
2-digit x 1​-digit Number

Mrs. Flynn models how to use the area model to solve a 2-digit by 1-digit to find the product.  This video is appropriate for grades 3 and 4.​
All About that Place Value 

Mrs. Trivino and Mrs. Jousan explain the place value relationship between the ones, tens, hundreds, and thousands in our Base-10 number system.​​
FASTT Math Help

Screen Cast-O-Matic describing  what should be done if you receive an  error message when trying to use Fastt Math on your iPad.
The district now has a parent technology help form for when students have trouble logging in to district programs at home.  Parents access through the link below.
 
https://katyisd.instructure.com/courses/82971  
 
 
16-17 FASTT Math Logo.jpg

 ​​

 Fourth Grade

​​Using the "Big 7" Strategy 
for Long Division

Mrs. Flynn models using the "Big 7" strategy for long division.  This strategy is taught before the traditional algorithm to support conceptual understanding.​
Multiplying a 2-digit x 2-digit 
Using the Area Model

In this video, Mrs. Chen and Mrs. Flynn team up to teach students how to use the area model to solve a 2-digit by a 2-digit number.​​
Division 
Using the Area Model

Mrs. Hall and Mrs. Williamson share how teaching students to master the TEK 4.4E by solving division problems with the area model supports conceptual understanding that leads to TEK 4.4F where students divide using the standard algorithm.​​
 
 
 

Division with Model ​​Math 
and the St​andard Algorithm

​Mrs. Jousa​n, our math instructional coach discusses the TEKs for 4th grade division and models how to combine the model math approach to problem solving with the standard algorithm​​ to solve a di​vision problem situation.
Using Models to Determine
 a Mixed Number

Ms. Williamson explains how to use a model to first compose the fraction to create an improper fraction.  Then she demonstrates turning the improper fraction into a mixed number.​​
Place Value Relationships

​In this video our 4th grade teachers at Davidson Elementary discuss place value relationships including the understanding that the value of each place value position is 10 times the value as the digit to the right and one-tenth the value as the digit to it's left.​​​
 
 
 


 

​​More with Place Value 
Relationships


​In this video Mrs. Hall demonst​​rates that the place value position to the right is one-tenth the value of the place value position to it's left.​
FASTT Math Help

Screen Cast-O-Matic describing  what should be done if you receive an  error message when trying to use Fastt Math on your iPad.
The district now has a parent technology help form for when students have trouble logging in to district programs at home.  Parents access through the link below.
 
https://katyisd.instructure.com/courses/82971
 
16-17 FASTT Math Logo.jpg


 

Fifth Grade

​​​Area Problem Solving

​Mrs. Ziese guides her students on how to find the area given a problem situation by using the formula area=length x width. ​​
Multiplying a Fraction 
by a Whole Number

Mrs. Jousan demonstrates how to multiply a fraction by a whole number by drawing a model.​
Using the Area Model 
to Divide

In this video, Mrs. Lauren Flynn models how to divide a three-digit number by a 2-digit divisor using the area model.  She scaffolds this approach by decomposing the divisor for students who are not fluent with fact fluency beyond 12's.​​
 
 
 
More on Using 
Area Model to Divide
​​
​Mrs. Flynn models another example on how to divide a three-digit number by a 2-digit divisor using the area model.  She scaffolds this approach by decomposing the divisor for students who are not fluent with fact fluency beyond 12's.​​​
Multiplying Decimals 
Using a Model

Mrs. Jousan​ shares how we can represent the 5th Grade TEK 5.3D of multiplying decimals using an area model and hundredths grid.​​
FASTT Math Help

Screen Cast-O-Matic describing  what should be done if you receive an  error message when trying to use Fastt Math on your iPad.
The district now has a parent technology help form for when students have trouble logging in to district programs at home.  Parents access through the link below.
 
https://katyisd.instructure.com/courses/82971
 
 
16-17 FASTT Math Logo.jpg


 

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