Search results 26 items matching your search terms. Filter the results Item type Select All/None Class Collection File Folder Image Integrator Profile Link Movie Page Parent Profile Parent-Child Link Question Quiz Quiz History Service Subscription Stats Student Profile Teacher Profile New items since Yesterday Last week Last month Ever Sort by relevance date (newest first) alphabetically Applying Division by Dr. Osama M. Khaled — published May 29, 2022 — last modified May 13, 2026 08:16 AM — filed under: Year 3, Year 4 Wondering how division can be used in real life? Take the quiz to know the answer. Division word problems Located in Mathematics / … / Whole Numbers / Dividing Whole Numbers Classify polygons by Dr. Osama M. Khaled — published Oct 12, 2025 — last modified Oct 18, 2025 12:05 PM — filed under: Year 4 A polygon is a closed geometric figure with at least three line segments for its sides Located in Mathematics / Geometry / Triangles Classify triangles by Dr. Osama M. Khaled — published Oct 16, 2025 — last modified Oct 18, 2025 12:06 PM — filed under: Year 4 A triangle is a polygon with three sides (and three vertices) Located in Mathematics / Geometry / Triangles Equivalent Fractions by Dr. Osama M. Khaled — published Sep 15, 2023 — last modified Jul 12, 2024 09:35 PM — filed under: Year 4, Year 5 Fractions can look different but still represent the same part of a whole. Located in Mathematics / … / Fractions and Mixed Numbers / Basics Estimate sums of whole numbers by Dr. Osama M. Khaled — published Jun 03, 2025 — last modified Jun 09, 2025 10:17 PM — filed under: Year 3, Year 4, Year 5 Estimation is used to find an approximate answer to a problem Located in Mathematics / … / Whole Numbers / Adding Whole Numbers Evaluate expressions involving addition and subtraction. by Dr. Osama M. Khaled — published Nov 04, 2025 — last modified Nov 04, 2025 08:22 PM — filed under: Year 4 To evaluate (find the value of) expressions written in horizontal form that involve addition and subtraction, we perform the operations as they occur from left ... Located in Mathematics / … / Whole Numbers / Subtracting Whole Numbers Find the area of a rectangle by Dr. Osama M. Khaled — published May 10, 2026 — last modified May 10, 2026 09:30 PM — filed under: Year 4 One important application of multiplication is finding the area of a rectangle Located in Mathematics / … / Whole Numbers / Multiplying Whole Numbers Find the perimeter of a polygon by Dr. Osama M. Khaled — published May 16, 2026 — last modified Aug 23, 2026 06:05 AM — filed under: Year 4 The perimeter of a polygon is the distance around it. To find the perimeter of a polygon, we simply add the lengths of its sides Located in Mathematics / Geometry / Perimeters and Areas of Polygons Find the perimeter of geometric shapes by Dr. Osama M. Khaled — published Jun 14, 2025 — last modified Aug 23, 2026 06:14 AM — filed under: Year 4 The length of all sides must be summed up to find the perimeter of a rectangle and a square Located in Mathematics / … / Whole Numbers / Adding Whole Numbers Fractions that have the same denominator by Dr. Osama M. Khaled — published Apr 26, 2024 — last modified Jul 12, 2024 09:46 PM — filed under: Year 4 Add and subtract fractions that have the same denominator Located in Mathematics / … / Fractions and Mixed Numbers / Adding and Subtracting Fractions 1 2 3 Next 10 items > Subscribe to an always-updated RSS feed.
