November Examinations for Physical Sciences: Grades 10 and 11

Remember that it is compulsory for ALL Free State schools to write the grade 10 and 11 national common examination papers in November 2015. 

The national circular dealing with these examinations are available now. Click here to download it (pdf file 1,7 MB); there is important information you need to be aware of. Annexure B in the circular is for the attention of the districts and province. Principals have to complete Annexure A.

Click here to read the previous post of 7 September on this blog about these examinations. The following important issues are dealt with:

• The dates of the examinations;
• Learners must have the examination guidelines; and
• All topics must be completed.

Memo comments: Grade 12 September P2 (Chemistry)

*** Latest info ***

Q2.1.4: The second criterium, which expects the whole molecule to be correct, includes the position of the double bond. Example: If a learners draws the correct structural formula for pent-2-ene, the learners gets one out of two. First mark is given for having the correct functional group. Second mark is lost because the position of the double bond is wrong; hence the whole molecule is not correct.

Q5.4: First calculation for number of moles is equal to 0,015 (not 0,15) and 0,015 must also be used in the second calculation where volume is calculated.

Q6.2: A square is needed in the Kc equation for the concentration of SO3; on pages 7 and 8.

Q9.3.3: Negative marking is applicable.

IBP memo discussions: Grade 12 September P1 (Physics)

The IBP memo discussion for physics takes place today. I have received a few enquiries so far; inter alia for questions 1.8, 2.2, 5.1.3 and 8.2.3. Where possible they were forwarded to the IBP centre for clarity. 

Watch this space for more info if needed. You are welcome to comment directly below each post in case you want to contribute. It is always appreciated.

Edutrade Smart Savings Promotion valid from 01 August 2015 to 15 December 2015

Edutrade currently has a smart savings promotion until 15 December 2015. Click here to get the information document (pdf file 1,5 MB), study it and use the opportunity to order apparatus and chemicals.

Read this post as well about - it deals with your responsibility to ensure that you have the necessary equipment to teach physical science properly.

September examinations

Best wishes to everybody with the examinations and control tests. 

This Friday (the 18th) is grade 12 physics examination with the practical task. Monday, 21st, is grade 12 chemistry examination and the control tests of grades 10 and 11 take place on the 28th.

Teachers - remember the following:

• Make the necessary arrangements at your school so that you can attend the IBP memo broadcasts and cluster marking sessions on the 21st and 23rd. Click here for more detail about this.
• Email your completed spreadsheets to your subject adviser as soon as you have finished your marking. All spreadsheets must be submitted before the final date that will be communicated by the director's office. 

***  Carpe Diem  ***

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Provincial SBA moderation

The following schools were sampled for provincial SBA moderation scheduled for 24 to 28 September 2015.

LA Wesi

Lenakeng

Kutloanong

Unitas

Concordia

Rearabetswe

HTS Welkom

Letsete

Mophate

Mosala

Material for this moderation must be submitted at the Kopano building as early as possible on 21 September 2015. The next day it will be taken to the moderation venue in Bloemfontein.

Please note - this is PROVINCIAL moderation; not the moderation done by your subject advisers in the district. More information about the latter is available here.

Final moderation of grade 12 SBA marks

The official circular about the final moderation of grade 12 SBA marks is available here (pdf file; 224 kB).

Principals, HODs and grade 12 teachers should take note of the general arrangements in the circular.

Specific arrangements (dates, etc.) for this year's physical science moderation will be shared in due course.

IBP memo discussions: Grade 12 September examinations

The IBP memo discussions for the grade 12 September examination papers are scheduled as follows:

Paper 1 (physics): 21 September 09:00 to 11:00
Paper 2 (chemistry): 23 September 09:00 to 11:00

Cluster marking will follow after each of the above-mentioned sessions as usual. The programme for each day will be the same as in the past.

Teachers - please make the necessary arrangements at your schools so that you can attend these very important events.

November Examinations for Physical Sciences: Grades 10 and 11

Important reminder and change of date

The above-mentioned examinations were originally scheduled for 27 and 30 November 2015. These dates have changed in the mean time. The latest arrangements are as follows:

ALL Free State schools have to write the grade 10 and 11 national papers in November 2015. The final dates are as follows:

• Grade 10 P1: 13 November
• Grade 10 P2: 18 November
• Grade 11 P1: 12 November
• Grade 11 P2: 16 November

It is very important that learners have the examination guidelines for these grades. They were distributed some time ago, but it is still available by clicking here. Teachers must ensure that the relevant content sections are copied for learners.

Are you in need of equipment and chemicals for your laboratory?

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Teachers often complain that they do not have chemicals and/or equipment. This is a reminder - once again - that:

1)  The physical science and natural science HODs and teachers are responsible to know what they have and what they need.

2)  Inform your principal and SMT about your needs in order to budget - these items are part of what we call LTSM.

3)  Depending on the category of school you are (Section 21, etc.), you have to get the procurement process on the way.

4)  The equipment provided through subject advisers to schools is a bonus; it is not the rule. Staff members at schools must see that laboratories are functional in order to do practical work.

Earlier this year a post has appeared on this blog (click here for the post) with contact details of Edutrade.

Browse Edutrade's website and send them an enquiry about prices, etc. Start the process to make practical work more effective. You have to initiate the process. Lastly; don't assume chemicals are "old". Test them and see whether they still do what they intend to do.

Subject advisers meet officials of the National Department of Education

Technical Sciences will be implemented in 2016 in technical schools. 

For this purpose, the subject advisers of the Free State have met the curriculum officials of the National Department of Education for an orientation session concerning the new curriculum. Here are a few pictures where one of the experiments was done.

A visit was also paid to the workshops of Technical High School Louis Botha in Bloemfontein.

Vrystaatse Skeinatkonvensie / Free State Science Convention

Vanaf 16 - 18 Augustus 2015 is die Vrystaatse Skeinatkonvensie by die NWU se Potchefstroom-kampus aangebied. Volpunte aan mev. Hannatjie Visagie, haar span en personeel van NWU vir die uiters interessante program. 

From 16 - 18 August 2015 the Free State Science Convention was held at the Potchefstroom Campus of the NWU. Full marks to Mrs Hannatjie Visagie, her team and staff of NWU for the highly interesting programme.

Hersiening op RSG

RSG bied tans 'n hersieningsreeks in verskillende vakke vir ons graad 12-leerders aan om hulle te help met voorbereiding vir die eindeksamen.

Die program oor fisiese wetenskappe is op Sondae om 16:30. Klik hier om te sien wanneer die ander programme uitgesaai word en deur wie.

Rol af vir meer inligting oor fisiese wetenskappe ...

Eksamenriglyne
In die eerste uitsending op 23 Augustus oor fisiese wetenskappe is daar na die Eksamenriglyndokument verwys. Leerders wat dit nie het nie, kan hier klik om dit af te laai. Die dokument is in pdf-formaat en ongeveer 1MB groot.

Vraestelle
Gebruik die skakels hieronder om die eindvraestelle van November 2014 en die aanvullingsvraestelle van Februarie/Maart 2015 af te laai.

November 2014
Vraestel 1 (fisika)
Vraestel 1 (fisikamemo)
Vraestel 2 (chemie)
Vraestel 2 (chemiememo)

Februarie/Maart 2015
Vraestel 1 (fisika)
Vraestel 1 (fisikamemo)
Vraestel 2 (chemie)
Vraestel 2 (chemiememo)

Sondag, 20 September 2015 se uitsending

Tydens hierdie uitsending gaan die oplos van elektriese stroombane bespreek word. Leerders kan na die volgende wenke kyk om hiermee te help.

As 'n stroombaandiagram vir jou ingewikkeld lyk, probeer dit oorteken om dit meer verstaanbaar te maak. Gebruik die volgende riglyne om dit te doen.

• Teken die battery/sel eerste en sit dit aan die bokant van jou oorgetekende stroombaandiagram.
• Teken die res van die komponente, maar sonder voltmeters, aan die onderkant.
• Begin by die battery/sel se positiewe of negatiewe pool en beweeg óf kloksgewys óf antikloksgewys. Teken die komponente in soos jy hulle teëkom.
• Sit laastens al die voltmeters in – ook aan die onderkant van die oorgetekende stroombaandiagram. Fokus spesifiek om te sien tussen watter komponente die arms van elke voltmeter geskakel is en behou daardie posisies.

Hier is drie voorbeeld van hoe 'n stroomdiagram "herteken" word. Hou hulle gereed tydens die uitsending; dit gaan bespreek word.

Voorbeeld 1

Voorbeeld 2

Voorbeeld 3

Sondag, 27 September 2015 se uitsending

Tydens hierdie uitsending word verwys na die gradiënt in vraag 8.1.4 (November 2014-vraestel 1) wat die "negatief van die interne weerstand" van die battery voorstel. Waarom is dit so?

Die grafiek lyk soos volg:

Die verduideliking is soos volg:

Sondag, 11 Oktober 2015 se uitsending

Tydens hierdie uitsending word die tweestap-neutralisasie in vraag 7 van die chemievraestel (November 2014) bespreek. Hier is 'n skematiese voorstelling van hoe die denkproses verloop om die berekeninge in vraag 7.2.1, 7.2.5 en 7.2.6 te doen. Let op hoe jy eintlik van "agteraf" werk as jy dit vergelyk met die volgorde van hoe die inligting in die vraestel aangebied word.

Wanneer jy met die begrippe "sterk suur", "swak suur", "sterk basis" en "swak basis" werk, is dit handig om 'n paar sure en basisse te memoriseer wat tipies as sterk en swak bekend staan.

Buiten dié hieronder, kan mens altyd van die Ka- en Kb-waardes gebruik maak om vas te stel of 'n suur en 'n basis sterk of swak is. Normaalweg het sterk sure Ka-waardes van groter as een; swak sure se Ka-waardes is kleiner as een. Net so het sterk basisse Kb-waardes van groter as een; swak basisse se Kb-waardes is kleiner as een.

Hier is 'n paar voorbeelde om te memoriseer:

• Sterk sure: soutsuur (HCl), salpetersuur (HNO3) en swawelsuur (H2SO4)

• Swak sure: koolsuur (H2CO3), oksaalsuur (COOH)2 en etanoësuur (CH3COOH)

• Sterk basisse: natriumhidroksied (NaOH), litiumhidroksied (LiOH) en kaliumhidroksied (KOH)

• Swak basisse: ammoniak (NH3), natriumkarbonaat (Na2CO3), kaliumkarbonaat (K2CO3), natriumwaterstofkarbonaat (NaHCO3) en kalsiumkarbonaat (CaCO3).

Sondag, 18 Oktober 2015 se uitsending
In vandag se uitsending word onder andere gepraat oor die selnotasie van 'n galvaniese sel. Hoe word dit korrek neergeskryf? Klik hier en hier om twee pdf-lêers (groottes 46kB en 9kB onderskeidelik) af te laai wat inligting bevat wat jou sal help om dit korrek te doen.

Sondag, 1 November 2015 se uitsending
In vandag se uitsending - die laaste een in die reeks - word verwys na 'n stel hereksamenvraestelle wat deur privaatkandidate in Junie/Julie 2015 geskryf is. Dié vraestelle is ook "CAPS"-georiënteerd en kan met groot vrug deur die graad 12-leerders gebruik word in hulle voorbereiding.

Indien jy egter wonder of 'n spesifieke vraag vir jou eksamen voorgeskryf is, raadpleeg die Eksamenriglyndokument (hoër op is 'n skakel om dit af te laai). Elders op die blog is ook 'n hele klomp Septembervraestelle wat gebruik kan word vir voorbereiding. Klik hier om soontoe te gaan en laai die Septembervraestelle sowel as die Junie/Julievraestelle af.