HKDSE Maths | Quadratic equations and the discriminant teaching guide | delta = 16, roots 1 and 5, k = plus or minus 6
Tutor lesson-prep guides · Secondary maths Students can use the formula, then freeze when a question asks for the range of k. The fix is to treat the discriminant as a switch. Two numbers, delta = 1……
DSE 数学|二次方程与判别式 备课指引(导师用)|Δ=16、根 1 与 5、k=±6 三条界线
导师备课指引 · 中学数学 学生识用公式,但一见“求 k 的范围”就停手,因为他们未把判别式当成开关。这一堂用 Δ=16 与 k=±6 两个数字,把三种情况变成可背可用的判断。 本堂目标 学生能够:① 用因式分解、配方法……
HKDSE Chemistry | Chemical equilibrium and Le Chatelier teaching guide | Kc = 64, 80% conversion, 15% Haber yield
Tutor lesson-prep guides · Secondary chemistry Students can recite that rates become equal at equilibrium, then plug the initial moles straight into Kc. One set of numbers, 0.50 and 0.50 going to 0.……
DSE 數學|二次方程與判別式 備課指引(導師用)|Δ=16、根 1 與 5、k=±6 三條界線
導師備課指引 · 中學數學 學生識用公式,但一見「求 k 的範圍」就停手,因為他們未把判別式當成開關。這一堂用 Δ=16 與 k=±6 兩個數字,把三種情況變成可背可用的判斷。 本堂目標 學生能夠:① 用因式分解、配方……
DSE 化学|化学平衡与勒沙特列原理 备课指引(导师用)|Kc=64、转化率 80% 与哈伯法 15% 产率
导师备课指引 · 中学化学 学生识背“平衡时正逆反应速率相等”,但一做 ICE 表就把初始摩尔数当成平衡浓度。这一堂用一组 0.50、0.50、0.80 的数字,把 Kc 从定义做到 64,再回头解释工业为何要牺牲产率。 本堂目标……
DSE 化學|化學平衡與勒沙特列原理 備課指引(導師用)|Kc=64、轉化率 80% 與哈伯法 15% 產率
導師備課指引 · 中學化學 學生識背「平衡時正逆反應速率相等」,但一做 ICE 表就把初始摩爾數當成平衡濃度。這一堂用一組 0.50、0.50、0.80 的數字,把 Kc 從定義做到 64,再回頭解釋工業為何要犧牲產率。 本堂目……
DSE History | Eastern Europe 1989-2004 Lesson-Prep Guide (Tutor Edition) | Timeline Chains, Three-Country Comparison and NATO and EU Enlargement
Tutor lesson-prep guides · Secondary History Students can recite that the Berlin Wall fell but cannot say why Poland negotiated while Romania bled. This lesson splits 1989 into comparable cases with……
DSE ICT | Cloud Computing and Virtualisation Lesson-Prep Guide (Tutor Edition) | IaaS, PaaS and SaaS Lines, Host and Cost Arithmetic, SLA Downtime
Tutor lesson-prep guides · Secondary ICT Students say they will move to the cloud but cannot say how many hosts, what it costs, or how many minutes a year it will be down. This lesson makes cloud a ……
DSE Geography | Urban Climate and Air Pollution Lesson-Prep Guide (Tutor Edition) | Heat Island Arithmetic, Corridor Planning and Pollutant Comparison
Tutor lesson-prep guides · Secondary Geography Students say the city is hotter and the air worse but cannot say by how much. This lesson turns two monitoring readings into a chain of cause and effec……


