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Value of the Place. Monday, September 16, 2013. Learning Goals:. Students will learn the importance of place value Students will read small and large numbers from 0.001 to 999,999,999 correctly Students will be able to represent whole numbers with expanded form and expanded form with powers.
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Value of the Place Monday, September 16, 2013
Learning Goals: • Students will learn the importance of place value • Students will read small and large numbers from 0.001 to 999,999,999 correctly • Students will be able to represent whole numbers with expanded form and expanded form with powers
Success Criteria • I am able to place and read numbers according to their place value • I am able to write a number in standard form, written form and expanded form • I am able to write a whole number in expanded form using the power of ten
Real world examples: • Distance from Earth to the Sun: • 149, 600, 000 km • Mark Zuckerberg’s net worth: • $19, 800, 000, 000 • Earth’s Population: • 7, 046, 000, 000 people
Expressing Numbers • Standard From: 574 • Written Form: Five hundred seventy-four • Expanded form: 500 + 70 + 4 = 5 x 100 + 7 x 10 + 4 x 1 • Expanded form using the power of 10: ?
10 to the Power of • 100 = 10 x 10 = 102 • 100,000 = 10 x 10 x 10 x 10 x 10 = 105 • 1,000 = ? • What connection can we make?
Expanded form using the power of 10 • 574: • 5 x 102 + 7 x 101 + 4
Expressing Numbers • Standard form: 16.47 • Word form: sixteen and forty-seven hundredths • Expanded form: 10 + 6 + 0.4 + 0.07 = 1 x 10 + 6 x 1 + 4 × 1/10 + 7 × 1/100 • Expanded form with powers of 10: 1× 101+ 6 + 4 ÷ 101+ 7 ÷ 102
How can we use this in real life? • The distance from the Earth to the Sun is roughly: • 150, 000, 000 km • One hundred and fifty million kilometers • 1 x 100, 000, 000 + 5 x 10, 000, 000 • 1 x 108 + 5 x 107 or we can say the distance from the Earth to the Sun is roughly 1.5 x 107 km