Curated OER
System of Equations for Passing Trains Problem
Here is a challenging motion problem about two different length trains and how long it takes them to pass each other going in the same direction and opposite directions. At first glance, there doesnÕt seem to be enough information given...
Khan Academy
Overtaking Word Problem
These types of problems cause many people to be distressed over algebra. In this video, Sal looks at a problem where three people, each at set distances apart, are traveling at different constant speeds. We need to know how long it will...
Khan Academy
Two Passing Bicycles Word Problem
In this video, Sal solves a word problem sent in by a listener with two cyclists riding towards each other over a given time. It is an interesting problem regarding ratios and the relationship between distance, rate, and time. He shows...
Curated OER
How Do You Find an Average?
How do you find an average of something? Watch this video and see how you can add up all your elements then divide by the number of elements you added up. So simple!
Curated OER
How Do You Use the Fundamental Counting Principle to Count the Number of Outcomes in a Sample Space?
Sometimes all you need is an image to help solve a word problem. This tutorial shows how drawing picture can help you determine a correct number of possibilities with given data. You can also use the FCP or fundamental counting principle...
Curated OER
How Do You Write an Absolute Value Inequality from a Word Problem?
Use this word problem to practice turning words into math. You'll follow the step-by-step process to determine what is being asked and what you'll need to do to solve the problem. A great tutorial for learners needing a little extra help...
Curated OER
Subtracting in Word Problems
Here is a real-life subtraction word problem that not only shows how to analyze a word problem but thoroughly describes the subtraction process. This is a fantastic video perfect for introducing both subtraction and problem solving...
Curated OER
Applications of Combinations
Problem solving is the key to this quick video lesson. The tutor describes all the combinations he can have using five different consumable items. This is a good way to show how learners can make lists to solve numeric problems.
Curated OER
Adding One-Digit Numbers
Your littlest learners will get a kick out of this math trick. The young lady in the video draws dots on each number and then counts them up. She correlates her method to images and explains all the numbers that can hold dots. This is a...
Khan Academy
Singapore Math: Grade 3a, Unit 1 (Part 8)
Sal provides a series of numbers for viewers to consider. They must attempt to identify the number pattern and predict the following two numbers in the sequence. The video contains various problems involving place value and pattern...
Curated OER
Singapore Math: Grade 3a, Unit 1 (part 9)
Have your class work through a series of exercises focused on number patterns with place value. Present each problem, allow your class to work through each one, and then show them what Sal did to solve each problem. Every problem is...
Curated OER
How Do You Solve a Problem Using Indirect Measurement with Shadows?
Using indirect measurement, this video shows viewers how to find the height of a flagpole. The lecturer employs drawings as well as proportions to solve this problem, explaining each step. A useful resource to aid struggling learners and...
Curated OER
How Do You Solve a Word Problem Using the Direct Variation Formula?
Have your class figure out how much "Teddy" weighs on the moon and how to translate words into algebra! This video shows pupils how to take a word problem, and then solve it using the direct variation formula and given information. Great...
Curated OER
How Do You Solve a Word Problem Using the Elimination by Subtraction Method?
Use word problems to teach systems of equations! The instructor in this video demonstrates how to solve a word problem using a system of equations and the elimination by subtraction method. She goes through each step, carefully...
Curated OER
How Do You Solve a Problem Using Indirect Measurement with Shadows?
Using indirect measurement, this video shows viewers how to find the height of a flagpole. The lecturer employs drawings as well as proportions to solve this problem, explaining each step. A useful resource to aid struggling learners and...
Khan Academy
Singapore Math: Grade 3a, Unit 1 (Part 7)
Third graders use zero, four, and five to make as many three-digit numbers as possible. Sal explains that to make the largest number possible, one must put the largest number in the highest place. Each step and Sal's thought process is...
Khan Academy
Singapore Math: Grade 3a, Unit 2 (Part 11)
Solving two-step word problems is a great way to build strong critical thinking and creative problem-solving skills. This video showcases three-word problems involving multi-digit addition or subtraction. Sal highlights essential...
Khan Academy
Singapore Math: Grade 3a, Unit 2 (Part 10)
Sal solves several practice problems in several ways to reinforce four-digit subtraction. He then takes viewers through solving word problems with four-digit subtraction, which requires regrouping. Use these problems as a class challenge...
Curated OER
How Do You Use a Tree Diagram to Count the Number of Outcomes in a Sample Space?
Deciding what to wear can be difficult, but it helps if you know your options. Use a tree diagram to solve word problems like the one in this video! Class members can watch and learn how to find and count possible outcomes (or outfits)....
Curated OER
How Do You Find a Number of Permutations Using the Fundamental Counting Principle?
The notion of permutations is used when rearranging objects or values. How many ways can the letters in the word NUMBER be rearranged? Don't try writing them all out one by one because it would take a long time. Use the Fundamental...
Curated OER
What is the Fundamental Counting Principle?
Oh my, five types of bread, eight kinds of lunchmeat, and six choices of cheeses. How many different combinations of sandwiches can be made? That's going to take a long time to figure out. No, it's not. Just use the Fundamental Counting...
Curated OER
How Do You Solve a Word Problem Using the Direct Variation Formula?
Have your class figure out how much "Teddy" weighs on the moon and how to translate words into algebra! This video shows pupils how to take a word problem, and then solve it using the direct variation formula and given information. Great...
Curated OER
How Do You Solve a Word Problem Using the Elimination by Subtraction Method?
Use word problems to teach systems of equations! The instructor in this video demonstrates how to solve a word problem using a system of equations and the elimination by subtraction method. She goes through each step, carefully...
Curated OER
Key Words
A young women shares her method for determining which words are important when solving a word problem. She reads two different problems then circles the words that let her know what operation to use to complete each problem.