<![CDATA[Mrs. Severson's Website - Honors Algebra 2 Blog]]>Mon, 27 May 2019 19:20:46 -0700Weebly<![CDATA[Transformations of Sine & Cosine functions & DMA 23]]>Fri, 24 May 2019 07:00:00 GMThttp://mrsseverson.weebly.com/honors-algebra-2-blog/transformations-of-sine-cosine-functions-dma-23 4th hour went over questions from their review packet and 5th hour went over questions from the 13-7 packet. Both classes completed the district assessment 23 on trig applications.

HW: Complete the review guide for test #8. 4th hour will have their last test on Tuesday, May 28th and 5th hour has their last test on May 29th. ]]><![CDATA[Transformations of sinusoidal functions]]>Fri, 24 May 2019 04:16:36 GMThttp://mrsseverson.weebly.com/honors-algebra-2-blog/transformations-of-sinusoidal-functionsStudents started by reviewing vertical and horizontal (phase) shifts for sinusoidal functions. They completed 13-7 Test Prep and the back (vocab support). Then students worked together on their partner quiz on graphs of sine and cosine. All students received a review packet for their last test next week.

HW: Complete WS 13-7 Packet and 4th hour should be ready to discuss any questions from the review. Last Quiz is tomorrow on applications of sinusoidal functions. 4th hour has their last test on Tuesday, 5/28, while 5th hour is scheduled for 5/29. ]]><![CDATA[Applications of sine and cosine functions - day 2]]>Thu, 23 May 2019 04:00:37 GMThttp://mrsseverson.weebly.com/honors-algebra-2-blog/applications-of-sine-and-cosine-functions-day-2Students completed the doubled sided half sheet that reviewed sine and cosine graphs (8 questions). We went over these in class. Then we finished the back side of the applications of sinusoidal graphs. We used our first desmos activity and worked through slides 11 - 13, which animated a ferris wheel and students created an equation to model the rider's height versus time.

HW: Complete the packet from yesterday. Quiz on sine and cosine functions will be tomorrow, 5/23. ]]><![CDATA[Applications of Sine/Cosine Functions]]>Wed, 22 May 2019 01:35:26 GMThttp://mrsseverson.weebly.com/honors-algebra-2-blog/applications-of-sinecosine-functionsStudents completed (& we went over it) an entrance slip on identifying the amplitude, period, frequency, midline, and range of a give sine or cosine function. Students also created an equation to match a given graph. We went over questions from yesterday's packet on vertical shifting sinusoidal graphs. This was collected.

Then we looked at a real-world problem that can be modeled with a cosine function, the high and low tides. We created a graph of the situation and an equation to match it. We used desmos to check it and also used it to identify the solutions to part c.

HW: Complete today's desmos activity: trig graphing]]><![CDATA[Vertical Shifting of Sinusoidal Graphs]]>Tue, 21 May 2019 02:11:56 GMThttp://mrsseverson.weebly.com/honors-algebra-2-blog/vertical-shifting-of-sinusoidal-graphsStudents completed the Desmos activity we started working on last Friday. Then we went over the 13-5 Cosine Packet and collected it. Students had time to work on the paper graphs of sine and cosine. We completed the first page of the packet: Vertical Shifting of Sinusoidal Graphs.

HW: Complete Vertical Shifting of Sinusoidal Graphs & Desmos: Match my trig graph. ]]><![CDATA[Review of Graphs of Sine and Cosine]]>Sat, 18 May 2019 01:10:33 GMThttp://mrsseverson.weebly.com/honors-algebra-2-blog/review-of-graphs-of-sine-and-cosineWe went over the graphic organizer on the sine and cosine functions. We highlighted important differences between these two periodic functions. We completed our Graphs of Sine and Cosine notes packet. At the end we looked at the keey features of the midline, vertical shift, amplitude, frequency (in the interval from 0 to 2 pi), period, parent function, and if there is a reflection over the x-axis to create an equation to match the given graph. 5th hour was able to get into the Desmos activity for today.

HW: Complete WS 13.4 (both sides) and the 13-5 Cosine packet. Students can start working on the Desmos Activity posted today in their google classroom. Those wishing to retake test #7 must do so by Thursday, May 23rd.]]><![CDATA[Graphing the Cosine Function]]>Fri, 17 May 2019 04:01:23 GMThttp://mrsseverson.weebly.com/honors-algebra-2-blog/graphing-the-cosine-functionUsing the unit circle again, we created a table of values from -2 pi to 2 pi and graphed those values. We also showed the cosine animation graph with the unit circle (shared in your google classroom). We looked at similarities and difference between the sine and cosine graphs. We noted a big difference was the starting place on the y-intercept. A cosine function will start at its minimum or maximum value on the y-axis; however, the sine graph will start at its midline on the y-axis. Then we looked at identifying the amplitude, frequency and period from a given cosine (or sine) function. We completed three cosine graphs together on the 13-5 vocab support page.

HW: Complete slides 1 - 9 on yesterday's desmos activity with graphing the sine function, complete front & back of 13-5 vocab support & complete the sine and cosine graphic organizer.]]><![CDATA[Graphing the Sine Function]]>Thu, 16 May 2019 04:02:19 GMThttp://mrsseverson.weebly.com/honors-algebra-2-blog/graphing-the-sine-functionWe started by calculating values of the sine function at easy points on our unit circle: 0, pi/2, pi, 3 pi/2 and 2 pi. We plotted these with desmos (and the graphing calculator) and the used the animation (there is one posted in your google classroom too) below to create the graph. We saw the range of values was between 1 and -1; the graph was periodic with a period of 2 pi. We also named the x and y -intercepts. We completed the sheet on the features of the sine graph. We also discussed how to find the amplitude and period from a given equation in the form: y = a sin (bx).

HW: Complete slides 1 - 9 on the desmos activity: sine function & WS 13.4 (1 - 9)]]><![CDATA[Test #7 Periodic Functions, Unit Circle & Trig]]>Tue, 14 May 2019 07:00:00 GMThttp://mrsseverson.weebly.com/honors-algebra-2-blog/test-7-periodic-functions-unit-circle-trigStudents completed their 2 part test #7.]]><![CDATA[Review for Test #7]]>Tue, 14 May 2019 00:24:10 GMThttp://mrsseverson.weebly.com/honors-algebra-2-blog/review-for-test-7Students played a Kahoot game to review their trig values on the unit circle (used by degrees and radian angle measures). Then students checked through their review and we went over questions. Students also received their quizzes back from Friday.

HW: Turn in any missing work listed in IC in Standard 7. Test #7 is tomorrow, May 14th. ]]>