Northeast College Preparatory School Lesson Plan Teacher(s): _Mr. Launhardt Grade: ___8th grade_________________ Subject(s): __8th grade math____scientific day 1 Date of delivery: Fri 9/28/12 Common Core Learning Standards Addressed: 8.EE.4. Perform operations with numbers expressed in scientific notation, including problems where both decimal and scientific notation are used. Use scientific notation and choose units of appropriate size for measurements of very large or very small quantities (e.g., use millimeters per year for seafloor spreading). Interpret scientific notation that has been generated by technology. SLO Students will have a better understanding of what scientific notation is how to differentiate between standard form and scientific form. Essential Question(s)/Guiding Question(s) How do you convert from standard form to scientific notation (both large and small numbers)? Higher Level Thinking Questions to be used during the lesson: In the work period they will use higher level thinking when applying scientific notation to real world problems Bridge/Connection/Hook: What is the value of 10⋅10⋅ 10 ⋅10 ⋅10⋅ 10? What might be a more efficient way of representing 10⋅10⋅ 10 ⋅10 ⋅10⋅ 10 ? In other words, how can you write an equivalent value with the fewest possible digits? What is 7.14 ∙ 10 ⋅10⋅ 10 ⋅10 ⋅10⋅ 10? How could you rewrite this as one multiplication problem that includes an exponent? Materials/Resources/Technology Integration: Work book handouts lesson #6 scientific notation Mini Lesson/Process/Procedure: Example 1 An ordinary quarter contains about 97,700,000,000,000,000,000,000 atoms. The average size of an atom is about 0.00000003 centimeter across. The length of these numbers in standard notation makes them awkward to work with. Scientific Notation is a shorthand way of writing very _______large_______ or very ______small__________ numbers using __________exponents________________. Scientific notation is written as the product of a factor (1≤ factor <10) and a power of 10. 97,700,000,000,000,000,000,000 = 9.77 x 1022 Important Notes for writing in scientific notation: The ______factor________ must be greater than or equal to ___1_____ and less than ____10_____. Example 2 There are over 300,000,000,000 stars in the Andromeda Galaxy. Write the number of stars in scientific notation. Standard Form Product Form 300,000,000,000 _____ × 100,000,000,000 Scientific Notation ________________________ Answer: There are _____________________ stars in the Andromeda Galaxy. Example 3 The thickness of a soap bubble is about 0.000004 meter. What is the thickness of a soap bubble written in scientific notation? Standard Form Product Form 0.000004 _____ × 0.000001 Scientific Notation ________________________ Answer: Soap bubbles are _____________________ meters thick. Work Time/Activities/Task: See handout in workbook lesson 6 See additional practice handout I workbook Additional practice worksheet Writing numbers in scientific notation Numbers to scientific notation interactive activity Convert to scientific notation video tutorial Exponents and scientific notation video Summary/Closure: Have students answer the essential question. Journal Entry – When you change a number from standard form to scientific notation, explain how you know which way to move the decimal point and how many places to move it. Access for All: Questions on homework will be addressed the next day in class to encourage them how to answer the questions. Homework: worksheet from RC Formative Assessment: Making sure that the students grasp the concept of powers of ten by answering the closure. Adjustments that will be made for student success: Go over the homework the next day and make sure the students understand how to explain the higher level questions by leading them with guided questions to answer them. REFLECTIONS How does this lesson reflect academic rigor? How does this lesson cognitively engage students? We will discuss in vertical team meetings We will discuss in vertical team meetings How does this lesson engage students in collaborative learning and enhance their collaborative learning skills? We will discuss in vertical team meetings