Define, explain and show examples of heterogenous mixtures and homogenous mixtures. Demonstrate how a heterogenous mixture can be converted into a homogenous mixture by combining chemically sulfur and iron.
Demonstrate examples of homogenous aqueous mixtures. Define solute, solvent, solubility, unsaturated, saturated, and super saturated. View the formation of a super saturated solution and then the precipitating out by the addition of only one extra crystal.
Examine emulsions of oil and water, and demonstrate the effect of using an emulsifying agent to prolong the emulsion.
9-5 Completing the Square – We reviewed that Completing the square is a method that is used for converting a quadratic expression of the form ax2 + bx + c to the vertex form a(x - h)2 + k. The most common application of completing the square is in solving a quadratic equation. This can be done by rearranging the expression obtained after completing the square: a(x + m)2 + n, such that the left side is a perfect square trinomial. Completing the square method is useful in:
• Converting a quadratic expression into vertex form.
• Analyzing at which point the quadratic expression has minimum/maximum value.
• Graphing a quadratic function.
• Solving a quadratic equation.
• Deriving the quadratic formula.
8-3 Quadratic Functions in Standard Form – We learned to compare properties of quadratic functions. We found the x coordinate by using the formula –b/2a. Next we plugged the x value into the equation to find the y value. Then we applied these principles to real-world problems.
Assignment: Complete the assigned problems for homework.
Bella read, discussed, analyzed, and completed the novel Where the Crawdads Sing. Before the end of the novel, she made predictions based on text interspersed throughout the novel. She then analyzed the validity of her predictions based on the text.
9-6 the Quadratic Formula and the Discriminant – We learned that the discriminant of a polynomial is a quantity that depends on the coefficients and determines various properties of the roots. It is generally defined as a polynomial function of the coefficients of the original polynomial.
Assignment: Find the discriminants of the assigned problems and determine the number of solutions for each quadratic equation for homework.
Bella continued analyzing and discussing the novel Where the Crawdads Sing. She made predictions for the outcome of the court trial using text for support. She wrote on the theme of prejudice as seen in the court scene citing text for support of her argument.
Bella watched a video on YouTube wherein a nurse details what it is like to be a nurse in the United States.
We used this video to discuss a variety of topics. Those topics included: a) tips for watching videos in a foreign language [slow speed, add captions], b) speech shadowing [we practiced this], c) listening to native Spanish speakers speaking to other native speakers, d) vocabulary from the video.
Bella then wrote a paragraph about the video. She did an excellent job at her first attempt. We revised the paragraph together.
