Math and History Videos from Spirit Lake: The Game

The following movies were created to supplement the content covered in Spirit Lake. Math content focuses on numbers and operations, while the cultural content videos focus on Dakota (Sioux) culture. You can also visit our 7 Generation Games YouTube channel.

Spirit Lake Math Videos

Math Vocabulary

Math Terms – Sometimes students can’t solve a problem because they don’t understand what it’s asking. When you can’t remember which is the product and which is the quotient, watch this! (BONUS! This video is also available in Spanish. )
Perimeter And Polygons
What’s a polygon? Is a heart a polygon? What’s a perimeter and how do you find it?


5 Things To Know About Subtraction  – What is subtraction? Is a number subtracted from itself always zero? What are 3 more things about subtraction? Watch this video to find out.


Long Multiplication Multiplying two-digit numbers? Multiplying three-digit numbers? It’s not that hard. Let Grandma show you how with these examples.

Long Multiplication – multiplication of 2-digit and 3-digit numbers – As this video shows, you can take the difficulty out of multiplication of large numbers by breaking it down into two or three easier problems. Can you multiply 10 by 300 ? Then you’re half-way there!

Also, check out the video, Perimeter And Polygons for using multiplication to find the perimeter in squares and rectangles.


Solving a word problem using division This is from our series on problem-solving strategies, “Start at the end”. It uses an example of a two-step word problem , with addition and division.

Using Division to Solve Word Problems Solve word problems that require dividing two-digit and three-digit numbers

Solving Long Division Problems by Guessing Can the first step in solving a long division problem really be to guess at the answer? Yes, yes, it can.

Long Division by Example This continues where the previous long division video left off, working through examples step by step.

Problem-solving Strategies

Problem Solving: Make It Easier – Using the example of subtraction with three-digit numbers, this video shows how to solve a problem by making it into an easier problem.

Estimation and the World’s Largest Venus Fly Trap Maria explains how to use estimation to solve math problems. It’s like guessing but more scientific.

Problem Solving: Visualize – Some problems can be solved by drawing, or even just imagining, a picture.

Problem Solving Tip: Start at the End – This video uses an example of a two-step word problem , with addition and division to show how starting at the end can help you avoid errors. (Also linked above under division.)

Bonus: All these problem-solving videos and more are available in Spanish.

Using Number Lines

How To Use A Number line – Learn what number lines are all about and how super useful these can be. You can use number lines for subtraction, to illustrate negative numbers and even in tracking buffalo.

Spirit Lake Culture Videos

The playlist is as follows:

  1. Native American Tradition of Counting Coup
  2. Native American Hunting of Deer and Buffalo
  3. Becoming a Buffalo Hunter in the Native American Culture
  4. Becoming a Buffalo Hunter in Native American Culture
  5. Spirit Lake Indian Boys Trained in the Arts of Hunting and War
  6. Tobacco is Considered Sacred by Most Native American Tribes
  7. Earning an Eagle Feather
  8. Story of the Lost Wife
  9. Native Americans by the Numbers – Before Christopher Columbus…
  10. Afterlife
  11. Buffalo Pony
  12. Eagle Pits
  13. Dakota Tracking Ability
  14. Winter Time