Middle School Common Core Math: Plane and Solid Geometry

What We Know vs. What We Need to Know (4:05); How can I Make a Drawing of the Different Shapes in the Room? (1:28); How Do I Determine How Much Foam to Buy? (2:26); How Do I Cut the Foam then Apply it to the Walls? (1:11); Solving the Big Question (3:55);

What We Know vs. What We Need to Know (5:08); On a Scale of 1 - 10 (3:58); How Much Did Everyone Like the Movie? (6:51); How Can I Give the Movie a Score? (5:36); Solving the Big Question (5:02);

What We Know vs. What We Need to Know (4:26); What is a Fast Way to Look at all my Text Usage? (3:42); Is There a More Efficient Way to Show My Text Usage? (4:48); How Can the Graphing Help Me to Control My Usage? (4:18); Valid Graphs for Supporting an Argument (3:04); Solving the Big Question (4:29);

What We Know vs. What We Need to Know (3:17); Do We all Spend the Same Amount of Time Playing? (6:02); How Can I Explain all This to My Parents? (3:59); Solving the Big Question (4:16);

What We Know vs. What We Need to Know (2:43); What Do I Do With All these Numbers? (3:37); How Do These Numbers Answer My Question? (3:51); Solving the Big Question (3:59);

What We Know vs. What We Need to Know (4:55); How Do I Determine the Possible Directions and Distance the Stink has Traveled? (2:33); How Can I Show the Skunk's Possible Locations With Respect to my Own Location in Writing? (1:56); How Can I Interpret What My Friend has Written for the Skunk's Location? (1:58); Solving the Big Question (2:25);

What We Know vs. What We Need to Know (4:35); How Do I Determine How Many Ferrets I have after a Day of Sales? (2:25); If I Buy and Sell, How Can I Determine My Number of Ferrets at any given Time? (3:43); If I Sell and Give Away More Than I Purchase, How Many Will I Have Left? (2:16); Solving the Big Question (3:05);

What We Know vs. What We Need to Know (8:25); How Fast is the Stuff Oozing into the Tank? (3:48); How Can I Calculate the Height of the Ooze After a Certain Amount of Time has Passed? (3:07); When Will I be Able to Stand With my Head Above the Ooze? (1:59); Solving the Big Question (5:19);

What We Know vs. What We Need to Know (2:17); How Can We Calculate Our Profit? (3:03); How Can We Determine Whether We Can Afford to Purchase New Supplies? (2:19); What Happens When Our Clients Change? (2:44); Solving the Big Question (4:22);

What We Know vs. What We Need to Know (4:09); Is it Easier to Figure Out if I Budget the Same Amount for Each Member? (5:02); If Lunches and Dinners Cost the Same Amount, Can We Combine Them? (1:48); Is There Some Way I can Make Calculations Easier to Do in my Head? (7:17); How Do I Make Changes to be Sure the Budget Will Work? (2:22); Solving the Big Question (6:03);

What We Know vs. What We Need to Know (2:49); How Do I Use the Formula? (5:50); How Can I Calculate the Temperature in Degrees Fahrenheit? (6:03); How Do I Know That an Equation Relates to a Particular Problem? (6:12); Solving the Big Question (3:18);

What We Know vs. What We Need to Know (5:39); How Much Methane Gas is Emitted by Cows in the US? (9:09); Are There Other Sources of Methane Gas From Cows? (10:28); What Part of Total Methane Gas comes from Cows? (3:30); Solving the Big Question (5:55);

What We Know vs. What We Need to Know (2:31); How Should I Charge for my Work? (2:21); If I Charge by Lawn Size, How Do I Charge for Different Yards? (3:16); Should I Charge by Size or by my Time? (2:57); Solving the Big Question (4:00);

What We Know vs. What We Need to Know (4:42); Can I Determine Anything About the Thief From a Single Print? (4:15); Is There a Way to Determine a Pattern With all These different Footprints? (4:11); Can I Know Anything About the Culprit's Size from a Footprint? (7:55); Solving the Big Question (6:40);

What We Know vs. What We Need to Know (7:02); How Can I Calculate a Discount Based on What I Read Someone Else got? (9:40); How do I Determine my Discount Percentage Based on the Amount the Restaurant Deducted From my Bill? (7:07); How Much Money Will I Spend on my Meal if I Place my Meal on my Credit Card? (3:50); Solving the Big Question (5:26);

What We Know vs. What We Need to Know (5:11); How Do I Plan My Design? (7:14); Once I Determine my Design, How do I Know Possible Size that Would Fit on the Card? (5:15); How Big Will My New Drawing Be? (5:55); How Do I Construct my Scale Drawing on my Card? (5:20); Solving the Big Question (7:36);

What We Know vs. What We Need to Know (4:11); What Structure Can I Build Given my Limited Supplies? (6:12); If I Can Set Up Two Branches With a Certain Angle, Will the Third One Fit? (5:03); How Do I Know Whether This is the Best Shape for These Branches? (3:16); Solving the Big Question (4:01);

What We Know vs. What We Need to Know (5:16); How Do I Determine the Angle Measures of the Gate? (7:14); How Do I Know What the Correct Angle Measurements of the Gate Should Be? (4:18); Solving the Big Question (7:49);

What We Know vs. What We Need to Know (4:20); Determine the Circumference of a Room (10:13); Determining the Area of a Room (9:21); Determining Area and Circumference With only one Measurement? (3:26); Determining Which Room is Bigger (4:51); Solving the Big Question (5:02);

What We Know vs. What We Need to Know (3:12); What Shape Will you get From Slicing Solids? (2:49); How Does this Help Doctors to Diagnose Disease? (2:31); Solving the Big Question (5:52);

What We Know vs. What We Need to Know (4:45); How Can I Determine How Much Paint is Needed? (2:44); What if Only Certain Parts are Exposed? (4:59); Solving the Big Question (3:45);

What We Know vs. What We Need to Know (3:19); What's the Best Shape to Have? (3:02); Finding the Length of Sides by Knowing the Volume (2:42); Solving the Big Question (3:46);

What We Know vs. What We Need to Know (3:24); Part, or Whole? (3:38); What does Random Mean? (2:58); Did I Pick the Right People? (2:44); Solving the Big Question (3:42);

What We Know vs. What We Need to Know (3:31); Who Prefers Ice Cream Over Cake? (2:40); How Much Extra Should I Buy? (4:42); Solving the Big Question (5:33);

What We Know vs. What We Need to Know (2:47); Will Comparing Graphs of the Data Tell me Anything? (4:51); Central Tendencies and Variability (4:30); Solving the Big Question (3:47);

What We Know vs. What We Need to Know (2:39); Using a Numerical Summary to Describe a Set of Data (6:49); Analyzing Times (5:01); Solving the Big Question (4:18);

What We Know vs. What We Need to Know (5:44); Understanding Likelihood (6:17); Understanding Probability (5:30); Understanding Odds (2:06); Solving the Big Question (3:34);

What We Know vs. What We Need to Know (6:08); Is This Game Fair? (6:07); How Can you Determine for Sure that a Game is Not Fair? (5:18); Solving the Big Question (4:16);

What We Know vs. What We Need to Know (4:00); What are the Chances? (3:42); What is the Probability? (4:58); Exploring Expected Frequency (2:19); Solving the Big Question (5:59);

What We Know vs. What We Need to Know (4:57); Determining Better Options (7:14); Determining Probability - Part 1 (3:12); Determining Probability - Part 2 (4:01); Solving the Big Question (2:34);

What We Know vs. What We Need to Know (4:47); Multiplication with Positive Exponents (5:45); Division by Positive Exponents (2:16); Applying Properties of Exponents (4:49); Solving the Big Question (7:33);

What We Know vs. What We Need to Know (5:33); Simplifying the Expression (3:13); Determining the Sale Price (9:03); Comparing Buying Now or Later (4:38); Solving the Big Question (6:10);

What We Know vs. What We Need to Know (8:33); Working With Lots of Zeros (4:47); Using Notations (6:53); Solving the Big Question (5:55);

What We Know vs. What We Need to Know (6:20); Rational Number as a Fraction (5:15); Perfect Squares (4:06); Decimals as Fractions (3:36); Comparing Values (2:57); Solving the Big Question (4:12);

What We Know vs. What We Need to Know (7:23); Verifying the Lines of a Square (5:22); Determining Diagonal Lengths (4:49); Determining Square with Diagonal Length (3:23); Determining Lengths of a Side (4:06); Solving the Big Question (4:25);

What We Know vs. What We Need to Know (2:03); Determining Two Path Lengths (5:48); Determining Who Will Win (7:18); Solving the Big Question (6:08);

What We Know vs. What We Need to Know (7:56); Measuring of Steepness (7:50); Comparing Proportional Relationships (3:18); Solving the Big Question (2:47); Ratios (3:00);

What We Know vs. What We Need to Know (5:01); Is Higher Steeper? (3:26); Comparing Slopes (5:38); Comparing Speeds (2:53); Explaining Equations (3:31); Solving the Big Question (5:34); Segment (0:16);

What We Know vs. What We Need to Know (4:07); Comparing Line Lengths with Times of the Day (3:30); Determining Relationships (4:24); Creating a Model for Prediction (4:14); Solving the Big Question (5:00);

What We Know vs. What We Need to Know (2:09); Translating Information to an Equation (9:09); Comparing Speeds (5:49); Catching up to My Rival (3:12); Solving the Big Question (4:27);

What We Know vs. What We Need to Know (4:37); Comparing Initial and Long-Term Costs (5:12); Break-Even Point (4:30); Solving the Big Question (3:19);

What We Know vs. What We Need to Know (3:36); Using Substitution to Solve and Equation (4:53); Finding the Culprit (4:49); Solving the Big Question (4:28);

What We Know vs. What We Need to Know (4:25); Using Equations (5:51); Substituting in Values (6:05); Decoding Correctly (3:52); Solving the Big Question (4:42); Custom math (9:30);

What We Know vs. What We Need to Know (3:19); Determining a Path (2:36); Comparing Heights (3:25); Solving the Big Question (5:59);

What We Know vs. What We Need to Know (2:16); Writing Equations (5:19); Writing an Equations with What We Know (6:06); Solving the Big Question (3:09);

What We Know vs. What We Need to Know (1:58); Understanding a Graph (2:57); Graphing Population Changes (2:54); Solving the Big Question (3:51);

What We Know vs. What We Need to Know (5:49); Movements (5:46); Determining Coordinates (4:05); Stating Transformations (2:07); Solving the Big Question (3:51);

What We Know vs. What We Need to Know (3:38); Changing the Size of a Shape (7:21); Dilating a Shape (4:25); Solving the Big Question (3:34);

What We Know vs. What We Need to Know (4:41); Measuring Angles (6:27); Making Sure Angles are Correct (4:07); Choosing the Correct Brackets (1:57); Solving the Big Question (3:43);

What We Know vs. What We Need to Know (4:54); Volume of a Cylindrical Shape (4:00); Volume of a Conical Shape (3:34); Volume of a Spherical Shape (5:33); Will it Fit? (4:57); Solving the Big Question (4:08);