Aims:
- to understand about scientific notation as application of exponent in real life
- To know how number can be written in scientific notation
Concept: scientific notation, power of ten, standard form, negative exponent
Tuning in: video about distance in space - the importance of scientific notation in science
See this video below to know why scientific notation can be really useful to replace big numbers in planetary measurement
How multiplying by a power of 10 affect the decimal.
Have them look for a pattern and ask them to write in maths book. -> The decimal points move to the right
- 10 (one zero) = 1,0 x 10 = 101
- 100 (two zeros) = 1,00 x 100 = 102
- 1000 (three zeros) = 1,000 x 1000 = 104
- Use the pattern for other number:
- 6 x 101 = 6 x 10 = 60
- 6 x 102 = 6 x 100 = 600
- 6 x 103 = 6 x 1000 = 6000
- Use the pattern for other decimal number:
- 2.5 x 101 = 2,5 x 10 = 25
- 2.5 x 102 = 2,5 x 100 = 250
- 2.5 x 103 = 2.5 x 1000 = 2500
Practice: do the worksheet given by teachers
Going further: Watch a movie 23 Scientific Notation/Brain Pop about scientific notation
Action
Write scientific notation for Planetary measurement, distance from sun, diameter, orbit around the sun, mass etc (portfolio works). See the example on the image and Download the worksheet below to see the example or as template to work for your math portfolio. Don't forget to submit on my class page
planets_measurement_table.docx |