3rd+Grade+Lesson+on++Rounding

ROUNDING WITH WHOLE NUMBERS By: Craig Mendizabal, Rebbecca Fuchs, Nanette Thomas, and Carolina Martinez §111.15. Mathematics, Grade 3. (b) Knowledge and skills. (5) Number, operation, and quantitative reasoning. The student estimates to determine reasonable results. The student is expected to: (A) round whole numbers to the nearest ten or hundred to approximate reasonable results in problem situations; Given five whole numbers and links to Internet sites, the student will work independently at a workstation to round whole numbers to the nearest hundred with 100% accuracy. The student will open the link to see a presentation on the what, why, and how of the concept of rounding whole numbers. [|Introduction to Rounding:] The student will view a 5-minute video on the process of rounding: [|Concept of Rounding]:
 * Objective:**
 * Purpose:**
 * Input and Guided Practice:**

Rounding to following numbers to the nearst 100:
 * Independent Practice:**

//__# Visitors__// January 1,178

February 1,392

March 20,162

April 76,349

May 105,732

[|Self check:] Using the answers from above, about how many more visitors to the Houston Zoo were there in May than there were in March? Using the class blog, students will reflect upon the value of rounding whole numbers in real life situations.
 * Extension:**


 * Sources Used:**
 * [|www.Prezi.com]**
 * [|www.KhanAcademy.com]**
 * [|www.Blabberize.com]**
 * (blog would be the teacher's class blog)**