David's Math Content

This PowerPoint presentation serves as an introduction to solving problems that involve finding parts of a whole by using tape diagrams. The process is clearly explained and modeled including examples using fractions and percents converted to fractions. The product can be used as an interactive class lesson or for individual student use due to absence or remediation. The amount of time spent using this presentation will vary depending on the teacher's usage of stopping points and/or student inte

This 18-slide PowerPoint presentation introduces the concept of a unit rate. It assumes students have already learned about the concept of a ratio. The material is based on Common Core 6th grade math standard: CCSS.Math.Content.6.RP.A.2. The presentation begins with a problem trying to compare two ratios to determine the best gas mileage. A tape diagram model is used to transform the ratios into unit rates to see how much more helpful they are when making comparisons. Unit rates are calculated u

This 22-slide PowerPoint presentation demonstrates how to use common factors and the distributive property to change an expression. Addition problems involving whole numbers are changed into a multiplication problem which is the product of the greatest common factor of the addends and the sum of two whole numbers that have no GCF other than "1". The content is based on 6th grade Common Core standard: CCSS.Math.Content.6.NS.B.4. The presentation takes about 30 minutes, but time considerations dep

This 18-slide PowerPoint presentation uses word problems to explore the role of multiples in solving them. It begins with defining a multiple before being introduced to problems involving common multiples. In the first problem you're looking for several common multiples over a period of time. The second problem is looking for the next time an events occur simultaneously (LCM). After summarization there is a problem students can work along with solution so they can check their work. The presentat

This 28-slide PowerPoint presentation guides you through the process that leads to finding the greatest common factor of given numbers. It can be used for full class or individual instruction. The time you spend on this presentation depends on how much student involvement you allow and stopping points encountered for emphasis. This presentation is a great reference to place on your teacher webpage as well. The content is based on the 6th grade Common Core math standard: CCSS.Math.Content.6.NS.B.

This 19-slide PowerPoint presentation develops the procedures used to multiply decimal numbers. This presentation is based on the 6th grade Common Core math standard: CCSS.Math.Content.6.NS.B.3. It can be used for class or individual instruction. Use it on your teacher web page as a student resource when needed. The presentation should take about 20-30 minutes of class time depending on stopping points you find necessary and student participation. The presentation begins demonstrating how you li

This 18-slide PowerPoint presentation demonstrates the processes of addition & subtraction involving decimal numbers. The content is based on Common Core standard: CCSS.Math.Content.6.NS.B.3. Decimal addition & subtraction is compared to whole number addition & subtraction to see the similarities. Careful attention is given to place value, lining up numbers correctly, and filling in empty areas with zeroes. Sample problems are provided and worked out. You can use this presentation as a lesson fo