Curated Video
Commutative and Associative Addition and Multiplication
Mr. Addit applies the commutative and associative properties to both addition and multiplication problems and shows examples.
Curated Video
Review for You: Multiplication and Properties
Mr. Addit reviews several aspects of multiplication and properties of multiplication.
Curated Video
Using Data to Make a Tally Chart
Mr. Addit explains what data is and then demonstrates how to create a tally chart from data that has been accumulated.
Curated Video
Measuring Accurately on the Celsius Scale
Mr. Addit explains why it is so important to include the unit of measurement in all your measurements.
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Review for You: Telling Time
Mr. Addit reviews how to tell time and calculate elapsed time.
Curated Video
Thermometer, Degree, Fahrenheit
Mr. Addit reviews the basic units of measurement: the inch, the foot, the mile, and the pound. He then explains how to measure temperature with a Fahrenheit thermometer.
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Telling Time to the Minute
Mr. Addit reviews telling time by the hour and half-hour. He then explains how to tell time by the minute.
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Digital and Analog Clocks
Mr. Addit explains the measurement of time: seconds, minutes, hours, days, and so on. He then compares an analog clock to a digital clock and how each clock tells the time of day.
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The Function Table and the Rule
Mr. Addit demonstrates how to find patterns in a function table to name the rule. He also works through sets of function tables.
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Regrouping and Carrying
Mr. Addit reviews the terms regrouping and carrying. He then shows examples of adding two two-digit numbers and two three-digit numbers to give examples of regrouping and carrying.
Curated Video
Commutative and Associative Properties
Mr. Addit reviews the terms commutative property and associative property and shows examples of each.
Curated Video
Addend, Sum, and Plus
Mr. Addit reviews the terms addend, sum, and plus. He then provides three methods for finding the missing addend in an addition sentence.
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Review for You: Addition and Function Tables
Mr. Addit reviews addition and the use of function tables.
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Round and Estimate
Mr. Addit explains the concepts of estimating and rounding and gives examples of rounding one-digit numbers to the nearest ten, rounding two-digit numbers to the nearest ten, and rounding numbers to the nearest hundred.
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Greater than, Less than, Equal To
Mr. Addit begins a discussion of greater than, less than, and equals and provides examples of their usage. He also explains how to place the proper symbol between sets of numbers.
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Review for You: Place Value and Number Comparison
Mr. Addit reviews place value, base-ten blocks, and inequalities.
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Expanded Notation
Mr. Addit explains expanded notation and uses the place value chart to show how numbers can be written in expanded notation. Then he models how to write numbers in standard notation, word notation, and expanded notation.
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Skip Counting
Mr. Addit explains skip counting. He uses a hundreds chart to illustrate the concept of skip counting, and then gives examples of skip counting by twos, threes, fives, and tens.
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Even and Odd Numbers
Mr. Addit reviews the differences between even and odd numbers and demonstrates how to identify whether a series of numbers is odd or even.
Curated Video
Finding Number Patterns
Mr. Addit reviews the definition of a pattern and explains that to find a pattern in a number sequence, we must first identify the rule. He also demonstrates how to first determine the rule of a number sequence in order to determine the...
Curated Video
Simplifying Surds by Multiplication
Multiplying Surds: Simplification: This video explains what simplifying a surd means and how to simplify surds by multiplication. The three multiplication rules are explained with examples. Practice question and answer using the concept...
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Ordering Decimals: Test Your Knowledge
This video provides a range of practice questions and answers relating to ordering decimals and place value.
Curated Video
Operations in Set Theory
This video provides a brief introduction to sets and then explains the four main set theory operations of union, intersection, difference and complement. Venn diagrams are used to demonstrate the concepts. Practice questions and answers...
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How to Make a Dot Plot
This video provides an informative and engaging explanation of dot plots, a visual representation of data points along a number line. The teacher begins by introducing the concept of dot plots as a way to organize data in a clear and...