Below are assignments from the "signficiant figure" mini-unit.
Assignments
Lesson D Significant Figures
(May 14/15)
OBJECTIVE(S)
(1) Practice applying significant figures to adding and subtracting problems.
LESSON & ASSIGNMENT
D block: (1) Students do sulfur and sand lab. (2) Check practice #3 in class.
Assignment: Quiz on Friday.
F block: (1) Dry run sulfur and sand mixing lab; make flowchart to do lab next day. (2) Review student worksheet on sig figs (practice #3).
Assignment: Complete flow chart for Friday. Quiz on Friday.
Lesson C Significant Figures
(May 12/13)
OBJECTIVE(S)
(1) Practice applying significant figures to adding and subtracting problems.
LESSON & ASSIGNMENT
D block: (1) Review last lab (finding density of 4 objects) with students. Clarify for students where their measurements are incorrect. (2) Students re-write their lab according to their mistakes and hand lab in when perfect.
Assignment: Complete sig fig practice worksheet #3 (click title to download). Due next class (on Thursday).
F block: (1) Review last lab (finding density of 4 objects) with students. Clarify for students where their measurements are incorrect. (2) Students re-write their lab according to their mistakes and hand lab in when perfect.
Assignment: Complete sig fig practice worksheet #3 (click title to download). Due next class (on Wednesday).
Lesson B Significant Figures
(May 5/6)
OBJECTIVE(S)
(1) Practice applying significant figures to adding and subtracting problems.
LESSON & ASSIGNMENT
D block: (1) Teach students how significant figures operate in adding and subtracting problems. Assignment: Complete "Sig Figs 5 practice" due on Thursday at the beginning of class.
F block: (1) Students copy notes for Significant figure adding, subtracting, multiplying & dividing. Assignment: Complete "Sig Figs 5 practice" due on Wednesday at the beginning of class. Quiz on Wednesday at the beginning of class.
Lesson A Significant Figures
(Apr 28/29)
OBJECTIVE(S)
Demonstrate the in science numbers are measurements. Measurements must follow specific guidelines to make sure that they correctly represent what has been measured.
LESSON & ASSIGNMENT
D block: (1) Students copy down five rules of significant figures and #6: "When measuring with an instrument, record all the gradations of the instrument and estimate one additional digit or place value. All the digits from the instrument's gradations AND your estimated digit are considered significant. Ex. When measuring with a mm ruler, a length may be 27.3 mm; meaning I can read the "twenty" and the "seven" and I am estimating the "three" but all three digits are considered significant. [Did not hand out section from textbook chapter.] (2) Students went to lab bench and made fictitious (but significantly correct!) measurements using: 50 mL beaker, 400 mL beaker, 50 mL graduated cylinder, 500 mL graduated cylinder, thermometer, and balance. Assignment: none
F block: (1) Students copy down five rules of significant figures and #6: "When measuring with an instrument, record all the gradations of the instrument and estimate one additional digit or place value. All the digits from the instrument's gradations AND your estimated digit are considered significant. Ex. When measuring with a mm ruler, a length may be 27.3 mm; meaning I can read the "twenty" and the "seven" on the ruler's markings and I am estimating the "three" but all three digits are considered significant. [Handed out section from textbook chapter on significant figures. We practiced the problems #30 and 31 from textbook section in class with students.] (2) Students went to lab bench and made fictitious (but significantly correct!) measurements using: 50 mL beaker, 400 mL beaker, 50 mL graduated cylinder, 500 mL graduated cylinder, thermometer, and balance. Assignment: none