Kleinjans, J
Phone:
Email:
Degrees and Certifications:
Mr. Kleinjans
I've been teaching for about 30 years; for the last 15 years, I've been teaching math at PHS, where I have taught Algebra 1, Algebra 1 Support, Geometry, Algebra 2, Precalculus, Statistics, and AP Statistics.
Have patience. I'm trying to figure out how to make good things happen. We're all learning here. Many things, including this site, will be changing often. We'll all be trying to make things work, and we'll all be trying new things, making mistakes, getting some things right,and learning from the experience. Let's just all keep trying to make things work as well as possible ... and try again to make things even better tomorrow. And try to not keep making the same mistakes over and over again.
Email: jkleinsjans@pittsburg.k12.ca.us

Teachers have been told that, for now, we should not try to teach any new material, but we should instead review material that we have already covered. We hope that we will start teaching and learning soon; in the meantime, this is new and different for all of us, and we (especially me!) are learning how to do it while we're doing it.
I thought that the most helpful way to start that would be to make available all classwork assignments from 01/08 to 03/13, so I'm converting all classwork into pdfs INCLUDING ANSWERS and uploading them here. This will take me some time little while.
The firt number is the assignment number as shown in Aeries; 0109 is the date thhat the file was assigned; 01 = January, 09 = the ninth. Then the assignment (file) name.
When checking your work, remember that the wrong answer is not the mistake; a wrong answer shows you that you made a mistake somewhere earlier. You should look through your work to find what mistake(s) you made, and figure out what would have been correct work nstead.
Special Right Triangles
2 0107 454590 NO ANSWERS (yet)
3 0108 306090 NO ANSWERS (yet)
4 0109 Special Right Triangles (Kuta)
5 0110 Extra Practice  NOT AVAILABLE
6 0113 Special Right Triangles 0
7 0114 Special Right Triangles  Ugly Numbers
8 7.2  Special Right Triangles NOOT AVAILABLE
9 0116 MultiStep Special Right Triangles
10 Quiz  Special Right Triangles
Unit Circle
11 0122 Unit Circle = Special Right Triangles
12 0123 Unit Circle with Degrees No answer sheet yet
Trigonometry
 Trig Table
14 0127 Starting Trig with Similar Triangles
15 0128 Right Triangle Trigonometry Problems 1
16 00129 Right Triangle Trigonometry Problems 2
17 0130 tan, sin, cos ratios
 0130 Tangent Ratio Problems
 0130 Sine and Cosine Ratio Problems
18 0130 Right Triangle Trigonometry Problems 3
19 0131 Inverse Trigonometric Ratios  Kuta
20 0203 Right Triangle Trig  Finding Missing Sides and Angles
21 0204 Geometry Worksheet 75  Angles of E and D No key yet
22 0205 Angle of Elevation and Depression Practice
23 0206 Angles of Elevation and Depression
 0206 Trigonometry Practice Test 2020
24 0207 Trigonometry Test 2020
 No key yet
Laws of Sines and Cosines
25 0211 Law of Sines Problem Set 1
27 0213 Law of Sines Mixed Problems
28 Law of Cosines Problem Sets 1 and 2
 0218 Law of Cosines Problem Set 1
 0218 Law of Cosines Problem Set 2
29 0219 Law of Cosines Problem Set 3
30 0220 Laws of Sines and Cosines
31 0224 Laws of Sines and Cosines 2
32 0225 Laws of Sines and Cosines 3
33 0226 Laws of Sines and Cosines Quiz
 No key yet
34 Pizzazz D3738 Not Available yet
Polygons (generally) and Quadrilaterals (specifically)
35 0227 Angles in Regular Polygons
36 Angles in Polygons Algebra 1 & 2
 0228 Angles in Polygons Algebra 1
 0228 Angles in Polygons Algebra 2
37 0303 Naming Polygons and Interior Angles
38 0304 Regular Polygon Angle Measures
40 0309 Special Parallelograms Worksheet
41 0310 Parallelograms in the Coordinate Plane
42 MAC Assessment  Never MInd (for now at least)