In order to assist, I worked with a few staff members to create mini-instructional videos/tutorials to help you with some of the math. Your child can also review the videos as a tutorial as well. Over time, we will continue to add more. Hope this helps!
G.Korrol

4th Grade – Lesson 1.2 Reading and Writing Numbers (Expanded, Standard, and Word Forms):

http://www.teachertube.com/video/fourth-grade-lesson-12-reading-and-writing-numbers-386157

4th Grade – Lesson 1.3 Ordering and Comparing Whole Numbers (Greater Than, Less Than, or Equal To):

http://www.teachertube.com/video/fourth-grade-lesson-13-ordering-and-comparing-whole-numbers-386160

4th Grade – Lesson 1.4 Rounding Whole Numbers (up to 6-digits):

http://www.teachertube.com/video/fourth-grade-lesson-14-rounding-whole-numbers-386161

4th Grade – Lesson 1.6 Adding Whole Numbers (up to 6-digits):

http://www.teachertube.com/video/fourth-grade-lesson-16-adding-whole-numbers-386164

4th Grade – Lesson 2.1 Multiplication Comparisons (solving for n):

http://www.teachertube.com/video/fourth-grade-lesson-21-multiplication-comparisons-386169

4th Grade – Lesson 2.2 Multiplication and Additive Comparisons (solving for n):

http://www.teachertube.com/video/fourth-grade-lesson-22-multiplication-and-additive-comparisons-386178

4th Grade – Lesson 3.1 Multiplying by Tens:

http://www.teachertube.com/video/fourth-grade-lesson-31-multiplying-by-tens-386179

4th Grade – Lesson 3.2 Estimating Products (the answer to a multiplication problem):

http://www.teachertube.com/video/fourth-grade-lesson-32-estimating-products-386181

4th Grade – Lesson 2.6 Multiplying Using Expanded Form:

http://www.teachertube.com/video/fourth-grade-lesson-26-multiplying-using-expanded-form-386953

4th Grade – Lesson 4.4 Divide Tens, Hundreds, and Thousands:

http://www.teachertube.com/video/fourth-grade-lesson-44-dividing-tens-hundreds-and-thousands-386954

4th Grade – Lesson 4.5 Estimating Quotients Using Compatible Numbers:

http://www.teachertube.com/video/fourth-grade-lesson-45-estimating-quotients-using-compatible-numbers-386963

4th Grade – Lesson 4.7 Divide Using Repeated Subtraction:

http://www.teachertube.com/video/fourth-grade-lesson-47-divide-using-repeated-subtraction-386975

4th Grade – Lesson 2.3 Multiplying Tens, Hundreds, and Thousands:

http://www.teachertube.com/video/fourth-grade-23-multiplying-tens-hundreds-and-thousands-386582

4th Grade – Lesson 2.4 Multiplying With Estimation and Checking For Reasonableness:

http://www.teachertube.com/video/fourth-grade-lesson-24-multiplying-with-estimation-and-checking-for-reasonableness-386585

4th Grade – Lesson 2.5 Multiplying Using the Distributive Property:

http://www.teachertube.com/video/fourth-grade-lesson-25-multiplying-using-the-distributive-property-386594

4th Grade – Lesson 3.3 Multiplying Using the Area Model and Partial Products:

http://www.teachertube.com/video/fourth-grade-lesson-33-multiplying-using-area-models-and-partial-products-386578

4th Grade – Lesson 3.5 Multiplying With Regrouping:

http://www.teachertube.com/video/fourth-grade-lesson-35-multiplying-with-regrouping-386584

4th Grade – Lesson 3.6 Multiplying Using Partial Products:

http://www.teachertube.com/video/fourth-grade-lesson-36-multiplying-using-partial-products-386587

4th Grade – Lesson 4.2 Using Models to Divide Whole Numbers:

http://www.teachertube.com/video/fourth-grade-lesson-42-using-models-to-divide-whole-numbers-386598

2nd Grade – Lesson 5.1 Breaking Apart Ones to Subtract:

http://www.teachertube.com/video/second-grade-lesson-51-breaking-apart-ones-to-subtract-386189

2nd Grade – Lesson 6.2 Three-Digit Addition, Breaking Apart Addends:

http://www.teachertube.com/video/second-grade-lesson-62-three-digit-addition-breaking-apart-addends-386191

2nd Grade – Lessons 7.1 and 7.2 Finding the Value of Coins by Skip Counting

http://www.teachertube.com/video/second-grade-lessons-71-and-72-finding-the-value-of-coins-by-skip-counting-386194

2nd Grade – Lesson 7.3 Finding the Value of Coins by Sorting:

http://www.teachertube.com/video/second-grade-lesson-73-finding-the-value-of-coins-by-sorting-386217

2nd Grade – Lesson 7.5 Counting Time To The Minute:

http://www.teachertube.com/video/second-grade-lesson-75-counting-time-to-the-minute-386197

2nd Grade – Lesson 7.8 Identifying and Recording Time To The Hour:

http://www.teachertube.com/video/second-grade-lesson-78-identifying-and-recording-time-to-the-hour-386198

2nd Grade – Lesson 7.10 Telling Time in Different Ways

http://www.teachertube.com/video/second-grade-lesson-710-telling-time-in-different-ways-386201

2nd Grade – Lesson 11.2 Identifying and Describing 3D Shapes (vertex, edge, face):

http://www.teachertube.com/video/second-grade-lesson-112-identifying-and-describing-3d-shapes-386212

2nd Grade – Lesson 10.3 Using a Tally Chart and Picture Graph:

http://www.teachertube.com/video/second-grade-lesson-103-using-tally-charts-and-picture-graphs-386949

2nd Grade – Lesson 10.4 Using A Bar Graph to Show Data:

http://www.teachertube.com/video/second-grade-lesson-104-bar-graphs-386948

2nd Grade – Lesson 10.6 Using Bar Graphs to Analyze Data:

http://www.teachertube.com/video/second-grade-lesson-106-using-bar-graphs-to-analyze-data-386951

2nd Grade – Lesson 6.7 Subtraction with 3-Digit Numbers (Regrouping Hundreds and Tens Place):

http://www.teachertube.com/video/second-grade-lesson-67-three-digit-subtraction-386429

2nd Grade – Lesson 8.1 Measuring to the Nearest Inch (Customary Unit):

http://www.teachertube.com/video/second-grade-lesson-81-measuring-to-the-nearest-inch-customary-unit-386431

2nd Grade – Lesson 9.1 Measuring to the Nearest Centimeter (Metric System):

http://www.teachertube.com/video/second-grade-lesson-91-measuring-to-the-nearest-centimeter-metric-system-386436

2nd Grade – Lesson 9.7 Using Customary and Metric Units to Measure Length (What Tools Do We Use?):

http://www.teachertube.com/video/second-grade-lesson-97-using-customary-and-metric-units-to-measure-length-386444

1st Grade – Lesson 8.5 Two-Digit Addition Using Math Models:

http://www.teachertube.com/video/first-grade-lesson-15-two-digit-addition-386966